Updated on 2023/10/25

写真a

 
TOMIYASU Takashi
 
Organization
Research Field in Science, Science and Engineering Area Graduate School of Science and Engineering (Science) Department of Science Chemistry Program Professor
Research Field in Cooperation, Integrated Arts and Sciences Area ?
Title
Professor

Degree

  • 博士（理学） ( 1998.3   筑波大学 )

Research Interests

  • 水銀

  • 反応速度

  • 微量分析

Research Areas

  • Nanotechnology/Materials / Analytical chemistry

  • Others / Others  / 環境化学

Research History

  • Kagoshima University   Research Field in Science, Science and Engineering Area Graduate School of Science and Engineering (Science) Department of Science Chemistry Program   Professor

    2020.4

  • Kagoshima University   Research Field in Cooperation, Integrated Arts and Sciences Area ?

    2019.4

  • Kagoshima University   Abolition organization Environment and Safety Center

    2010.4 - 2019.3

  • Kagoshima University   Research Field in Science, Science and Engineering Area Graduate School of Science and Engineering (Science) Earth and Environmental Sciences Course   Professor

    1989.4 - 2020.3

Professional Memberships

  • 日本地球化学会

    2015.10

  • 日本化学会

    2015.10

  • 日本分析化学会

    2015.10

 

Papers

  • Tomiyasu T., Matsuki H., Oda M., Kodamatani H., Kanzaki R., Kobari T. .  Impact of mercury discharged from submarine volcano on inner bay ecosystems .  Chemosphere339   139748   2023.10Reviewed

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    Authorship：Lead author,　Corresponding author   Language：Japanese   Publisher：Chemosphere  

    Organic mercury, inorganic mercury and total mercury concentrations in phytoplankton (<0.1 mm) and zooplankton (>0.1 mm) collected in Kagoshima Bay, Japan were measured from 2017 to 2019 to estimate the impact of mercury discharged from submarine volcanoes on ecosystems; submarine volcanic activity continues at a depth of 200 m in the inner part of Kagoshima Bay. The total mercury concentrations in phyto- and zooplankton collected by vertical hauling at 0–200 m at just above the submarine volcano were in the range of 0.11–2.0 mg kg−1 (avg. 0.67 mg kg−1) and 0.090–0.56 mg kg−1 (avg. 0.21 mg kg−1), respectively. These values were one order of magnitude higher than the values in plankton collected in the central part of Kagoshima Bay. Organic mercury concentrations in phyto- and zooplankton were <0.010–0.071 mg kg−1 (avg. 0.028 mg kg−1) and 0.012–0.25 mg kg−1 (avg. 0.10 mg kg−1), respectively, for the inner part, and <0.010–0.040 mg kg−1 (avg. 0.010 mg kg−1) and <0.010–0.025 mg kg−1 (avg. 0.012 mg kg−1), respectively, for the central part. The values obtained in the inner part of the bay increased in summer and decreased in winter, which was consistent with changes in seawater mercury concentrations affected by volcanic activity. The organic mercury concentration in zooplankton collected just above the submarine volcano showed a size dependency, and a higher value was observed in the larger size, which suggested that the discharged mercury from the volcano was absorbed and concentrated through the ecosystem.

    DOI： 10.1016/j.chemosphere.2023.139748

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  • Tomiyasu T., Nozoe C., Ruiz W.L.G., Kodamatani H., Kanzaki R. .  Distribution of selenium and mercury concentrations in sediments of Kagoshima Bay: can submarine volcanic activity affect the distribution of selenium in sediments? .  Environmental Earth Sciences82 ( 20 )   2023.10Reviewed

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    Authorship：Lead author,　Corresponding author   Language：Japanese   Publisher：Environmental Earth Sciences  

    Strong geothermal activity is observed at the bottom of Kagoshima Bay. The impact of volcanic activity on the sediment can be estimated by using the mercury concentration as an indicator. In this study, the distribution of selenium in the sediment of Kagoshima Bay was investigated and compared with the mercury concentration to estimate the impact of submarine volcanic activity on the selenium concentration in sediment. The selenium concentrations in sediment from 7 locations were in the range of 0.24–0.54 mg kg−1, which is approximately equal to the world shale average of 0.6 mg kg−1. A positive correlation was observed between total organic content and selenium, which suggested that the primary source of selenium in sediment is marine biological materials. On the other hand, in the geothermal area, the higher the mercury concentration is, the higher the Se concentration, which suggests that geothermal activity supplies selenium to the surrounding sediment.

    DOI： 10.1007/s12665-023-11159-9

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  • Kanzaki R., Hidaka T., Kodamatani H., Tomiyasu T. .  Determination of autoprotolysis (autoionization) constant according to gran's procedure on potentiometric titrations .  Journal of Molecular Liquids384   2023.8Reviewed

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    Language：Japanese   Publisher：Journal of Molecular Liquids  

    Gran's plot is an ingenious tool to find endpoints in potentiometric neutralization titrations. It can also be utilized for determining the formal potential of the electrodes, which is required in the case of obtaining the hydrogen ion concentration with pH sensor electrodes involving glass electrodes. Furthermore, autoprotolysis constants can be determined through Gran's plots with high accuracy, even those containing impurities. Gran's plot is thus a fundamental technique for investigating the properties of novel solvents such as protic ionic liquids as acid-base media. However, there are limitations in the autoprotolysis constants of the solvents and the ionization constants of the impurities, and so on, where Gran's plots work well. Hence, we have clarified the reliable range of these constants to be determined through Gran's plot by calculating the titration curves under various conditions and simulating these determination processes.

    DOI： 10.1016/j.molliq.2023.122180

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  • Tomiyasu T., Shitauchi R., Kasai D., Kitagawa T., Kodamatani H., Kanzaki R. .  The distribution and dynamics of residual mercury from the Chisso chemical plant in sediments of the Yatsushiro Sea, western Kyushu, Japan: have recent sedimentations lowered surface mercury concentrations? .  Environmental Science and Pollution Research30 ( 28 ) 72769 - 72781   2023.6Reviewed

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    Authorship：Lead author,　Corresponding author   Language：Japanese   Publisher：Environmental Science and Pollution Research  

    To determine the long-term dynamics of mercury discharged from Chisso chemical plant between 1932 and 1968, the vertical variation in mercury concentrations in Yatsushiro Sea sediments was studied from 2013 to 2020 at 31 locations and compared to the mercury concentration distribution obtained in 1996. The results suggest that new sedimentation occurred after 1996, but the mercury concentrations at the surface ranged from 0.2 to 1.9 mg kg−1, which did not decrease significantly over a 20-year period. It was estimated that approximately 17 t of mercury remained in the southern Yatsushiro Sea sediment, which is equivalent to 10–20% of the total mercury discharged between 1932 and 1968. From results of WD-XRF and TOC measurement, it was suggested that mercury in sediment had been transported with suspended particles derived from sludges from the chemical plant and further suggests that the suspended particles derived from the sediment surface layer are still slowly diffusing.

    DOI： 10.1007/s11356-023-27505-0

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  • Kodamatani H., Kubo S., Takeuchi A., Kanzaki R., Tomiyasu T. .  Sensitive Detection of Nitrite and Nitrate in Seawater by 222 nm UV-Irradiated Photochemical Conversion to Peroxynitrite and Ion Chromatography-Luminol Chemiluminescence System .  Environmental Science and Technology57 ( 14 ) 5924 - 5933   2023.4Reviewed

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    Language：Japanese   Publisher：Environmental Science and Technology  

    Sensitive detection methods for nitrite (NO2-) and nitrate (NO3-) ions are essential to understand the nitrogen cycle and for environmental protection and public health. Herein, we report a detection method that combines ion-chromatographic separation of NO2- and NO3-, on-line photochemical conversion of these ions to peroxynitrite (ONOO-) by irradiation with a 222 nm excimer lamp, and chemiluminescence from the reaction between luminol and ONOO-. The detection limits for NO2- and NO3- were 0.01 and 0.03 μM, respectively, with linear ranges of 0.010-2.0 and 0.10-3.0 μM, respectively, at an injection volume of 1 μL. The results obtained by the proposed method for seawater analysis corresponded with those of a reference method (AutoAnalyzer based on the Griess reaction). As luminol chemiluminescence can measure ONOO- at picomolar concentrations, our method is expected to be able to detect NO2- and NO3- at picomolar concentrations owing to the high conversion ratio to ONOO- (>60%), assuming that contamination and background chemiluminescence issues can be resolved. This method has the potential to emerge as an innovative technology for NO2- and NO3- detection in various samples.

    DOI： 10.1021/acs.est.3c00273

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  • Tomiyasu T., Yasumatsu S., Kodamatani H., Kanzaki R., Takenaka C., Murao S., Miyagawa S., Nonaka K., Ikeguchi A., Navarrete I.A. .  The dynamics of mercury around an artisanal and small-scale gold mining area, Camarines Norte, Philippines .  Environmental Science and Pollution Research30 ( 8 ) 20052 - 20064   2023.2Reviewed International coauthorship

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    Authorship：Lead author,　Corresponding author   Language：Japanese   Publisher：Environmental Science and Pollution Research  

    To elucidate the dynamics of mercury emitted and released by artisanal and small-scale gold mining (ASGM) activity and to estimate its impact on the ecosystems of the bay, the distribution of mercury in the atmosphere, soil, water, and sediment around Mambulao Bay, Camarines Norte, Philippines, was investigated. The ASGM operations use mercury to extract gold from ore and are located on the east shore side of the bay. Samplings were conducted in August 2017 and September 2018. The samples were used for determination of total mercury (T-Hg) and organic mercury (org-Hg) concentrations, total organic carbon (TOC) content, and chemical composition. The atmospheric mercury concentration on the east shore side, 6.1–25.8 ng m−3, was significantly higher than the value of 1.4–9.9 ng m−3 observed on the west shore side. The average concentrations of T-Hg in the forest soils of the west shore side and those of the east shore side were 0.081 ± 0.028 mg kg−1 and 0.496 ± 0.439 mg kg–1, respectively. In the vertical distribution of T-Hg in the soil of the east shore side, a higher concentration was observed near the surface. For the vertical variations in T-Hg in the marine sediment, higher values were observed near the estuary, and the vertical variations in core samples showed an increase in mercury concentration toward the surface. The highest concentration of T-Hg in sediment, 9.5 mg kg−1, which was 2 orders of magnitude higher than the background levels of this area, was found near the river mouth. The T-Hg, org-Hg, and TOC levels showed a positive correlation, suggesting that the rivers are the main sources of T-Hg and org-Hg in the bay. Although the fish sample containing a mercury content higher than the regulatory level for fish and shellfish of 0.4 mg kg−1 in Japan was only one of 42 samples, the percentage of org-Hg in fish samples was 91 ± 18%. Mercury released into the surroundings by the ASGM activities can be converted into methylmercury and affect the bay’s ecosystem.

    DOI： 10.1007/s11356-022-23497-5

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  • Kodamatani H., Kubozono K., Kanzaki R., Tomiyasu T., Fujioka T. .  Reverse osmosis membrane-based pretreatment for the quantification of N-nitrosodimethylamine concentrations in high-matrix water samples .  Environmental Science: Water Research and Technology   2023Reviewed

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    Language：Japanese   Publisher：Environmental Science: Water Research and Technology  

    N-Nitrosodimethylamine (NDMA) is a carcinogenic constituent commonly found in recycled water and pharmaceuticals. Developing an analytical method to continuously monitor changes in NDMA concentrations during water recycling and pharmaceutical manufacturing can mitigate accidents caused by NDMA formation. However, NDMA analysis in high-matrix water samples, such as beverages, wastewater, and pharmaceutical ingredients, is difficult. In this study, we adapted reverse osmosis (RO) membrane treatment as a pretreatment for NDMA analysis by isolating NDMA from interfering substances in high-matrix water samples. Subsequently, high-performance liquid chromatography-chemiluminescence detection was used for NDMA analysis. In a pure water matrix, 95% of NDMA can pass through at a low permeate flux of 1 L m−2 h−1. The method was then validated using beer, which is known to contain high concentrations of NDMA, as a representative high-matrix water sample. We found that RO pretreatment leads to clean chromatograms in which NDMA peaks are clearly visible while other peaks are mostly absent. Analysis of six different beer samples showed a maximum NDMA concentration of 315 ng L−1, and an average NDMA concentration of 138 ± 83 ng L−1 (n = 6), which fall within the regulation limits for NDMA in beer in the United States of America. The proposed pretreatment method has the potential to provide a platform for developing technologies for continuous monitoring of NDMA in aqueous solutions.

    DOI： 10.1039/d3ew00222e

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  • Tomiyasu T., Mitsui A., Mitarai M., Kodamatani H., Kanzaki R. .  Seasonal variation in mercury species in seawater of Kagoshima Bay, southern Kyushu, Japan: The impact of active submarine volcanos on the inner bay .  Marine Chemistry244   2022.7Reviewed

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    Authorship：Lead author,　Corresponding author   Language：Japanese   Publisher：Marine Chemistry  

    Wakamiko Proto-Caldera, a submarine volcano, is located at the bottom of the sea in the bay head area of Kagoshima Bay. In Kagoshima Bay, several species of fish with total mercury exceeding the provisional regulation value of 0.40 mg kg−1 were found in the 1970s. The effects of mercury released from submarine volcanoes are suspected. However, the path from volcanic mercury to the broader ecosystem has not yet been clarified. In this study, as the first step to elucidate the impact of volcanic activity on the ecosystems of Kagoshima Bay, seasonal changes in the concentrations of dissolved gaseous mercury (DGM), Hg(II), filtered total mercury (FT-Hg), particulate mercury (P-Hg), and mercury in suspended particulate matter (Hg in SPM) in seawater of Kagoshima Bay were tracked every two months from Feb. 2014 to Dec. 2017. The dissolved total mercury (DT-Hg) concentration was calculated by summing the DGM and FT-Hg concentrations. The DT-Hg at the location in the caldera ranged from 0.09 to 6.83 ng L−1 showing higher values in summer compared to winter, that is, in the stratified period. The P-Hg showed similar periodic variation as DT-Hg, and the highest Hg in SPM was 2.15 mg kg−1, which is one order of magnitude higher than that observed at the reference site. The high mercury concentration in SPM suggests the accumulation of dissolved mercury discharged from volcanic activity on SPM. Since mercury loaded on SPM can be taken up by suspension feeders and enter the food chain, the Hg in SPM may be a key factor affecting Hg in fishes in Kagoshima Bay.

    DOI： 10.1016/j.marchem.2022.104133

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  • Kawabata Kuniyo, Kitamura Yujin, Morikawa Noritoshi, A. Takahashi Hiroshi, Takahashi Masaaki, Tsunomori Fumiaki, Kodamatani Hitoshi, Tomiyasu Takashi, Kazahaya Kohei, Ishitani Yoshimasa .  Relationship between hot spring components and geological structure around Aira Caldera .  Abstracts of Annual Meeting of the Geochemical Society of Japan69 ( 0 ) 113   2022Relationship between hot spring components and geological structure around Aira Caldera

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    Language：Japanese   Publisher：GEOCHEMICAL SOCIETY OF JAPAN  

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    DOI： 10.14862/geochemproc.69.0_113

  • Kodamatani H, Shigetomi A, Akama J, Kanzaki R, Tomiyasu T .  Distribution, alkylation, and migration of mercury in soil discharged from the Itomuka mercury mine. .  The Science of the total environment815   152492   2021.12

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    Language：English   Publisher：Science of the Total Environment  

    The purpose of this study was to investigate the behavior of previously discharged mercury (Hg) released from the Itomuka Hg mine into the surrounding environment, especially into soil. Total-Hg (T-Hg), methylmercury (MeHg), and ethylmercury (EtHg) concentrations in the surface soil at eight sample sites around the mine were 3.8–64.2 mg/kg, 6.0–54.7 μg/kg, and undetected to 4.5 μg/kg, respectively. Core samples collected from seven of the eight sample sites showed that the vertical distribution of T-Hg was the highest in the surface soil layer and decreased rapidly in the lower layers. A strong positive correlation was observed between T-Hg and MeHg concentrations in the core samples; however, the slope of the regression line varied considerably for each core. This suggests that Hg and MeHg were not supplied from the atmosphere simultaneously, but rather that MeHg was produced on-site. Further, the formation of MeHg and EtHg in soil was considered in terms of the total organic carbon/total nitrogen ratio, which is a decomposition index of soil organic matter. The strong positive correlation between T-Hg and MeHg can be attributed to the migration of organic matter containing Hg species to the lower layers. There was no relationship between T-Hg and MeHg at the riverbed sample site because of the high T-Hg in the lower soil layers, suggesting that Hg was supplied by ore at this sample site. These assumptions of the formation change and migration of Hg in soil were supported by the results of the fractionation experiment and the elution test. To understand the current conditions in this area, measurements of Hg in the water, sediment, atmosphere, and plants were also conducted.

    DOI： 10.1016/j.scitotenv.2021.152492

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  • Takenaka C. .  Effects of forest fires on mercury accumulation in soil at the artisanal small-scale gold mining .  Environmental Monitoring and Assessment193 ( 11 ) 699   2021.11Reviewed

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    Language：Japanese   Publisher：Environmental Monitoring and Assessment  

    In response to the Minamata Convention on Mercury, international organizations, governments, nonprofit organizations, and other institutions as well as individuals have worked to promote the development and implementation of safe and environmentally healthy practices, processes, and products. It is expected that the accumulation of mercury in the natural environment will decrease in volume each year. However, even after Hg ceases to be used, the Hg already accumulated in forests will continue to pose an ecological risk. Forest fires are serious events, partly because they release accumulated Hg from the environment. In this study, the effects of forest fires on the accumulation and chemical species of Hg in soil, related to the mobilization of Hg, were investigated. The research was conducted in secondary forests located near artisanal small-scale gold mining sites, where Hg is used for the amalgamation of gold in Camarines Norte, Philippines. The results showed that the original Hg accumulation level in the burned forest was not as high as that in the control forest, and that burn severity might have affected only the surface soil (0–5 cm). However, the proportion of water-soluble Hg, which was derived from ash, was increased by fire. Therefore, it is suggested that forest fires not only increase the release of Hg into the atmosphere but also increase the outflow risk to the aquatic system through rainfall.

    DOI： 10.1007/s10661-021-09394-3

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  • Kodamatani H., Yoshimine D., Fujioka T., Kanzaki R., Tomiyasu T. .  A novel luminol chemiluminescence induced by photoexcited ketones: A selective determination method for acetone in wastewater .  Talanta Open3   2021.8Reviewed

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    Language：Japanese   Publisher：Talanta Open  

    It has been recently confirmed that photoexcited ketones such as acetone promote the chemiluminescence (CL) reaction of luminol and its analog, L-012. Using this finding, a selective determination method for acetone was developed herein based on HPLC separation, online UV irradiation, and subsequent luminol CL detection. Various conditions, including the type of luminol reagent, the use of organic solvents as eluent modifiers, and the reaction pH, were investigated to elucidate the CL reaction mechanism. The results showed that the CL reaction of luminol is caused by an acetone ketyl radical produced from the photoexcited acetone. The performance of the novel acetone determination method was evaluated by its application in water quality assurance in water treatment plants. The method detection limit and the method quantification limit of acetone were 0.03 and 0.08 µM, respectively. A linear range was obtained in the concentration range of 0.1–200 µM. The range of recovery in the wastewater and seawater samples (n = 5) fortified with 5.0 µM acetone was 87–108%. These results demonstrate that the new luminol CL system is useful for its sensitivity and selectivity.

    DOI： 10.1016/j.talo.2021.100035

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  • Kodamatani H. .  Inhibitory effect of alkyl groups on N-nitrosamine formation from secondary and tertiary alkylamines with monochloramine .  Environmental Technology and Innovation22   2021.5Reviewed International journal

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：Environmental Technology and Innovation  

    N-nitrosamines are contaminants of emerging concern, and controlling these chemicals in potable water and recycled water for potable reuse has become important for protecting public health. This study aimed to evaluate the influence of the alkyl chain lengths of N-nitrosamine precursors (secondary and tertiary amines) on the formation of N-nitrosamines via chloramination. The molar conversion efficiency from dimethylamine, an N-nitrosodimethylamine (NDMA) precursor, to NDMA (0.67%) was greater than that from diethylamine, an N-nitrosodiethylamine (NDEA) precursor, to NDEA (0.38%). Similarly, the molar conversion efficiency from trimethylamine to NDMA (0.92%) was greater than from triethylamine to NDEA (0.33%). Interestingly, a considerable difference in molar conversion efficiencies were observed for tertiary amines with the N,N-dialkyl-α-arylamine structure: the molar conversion efficiencies from N,N-dimethylbenzylamine and N,N-diethylbenzylamine to NDMA and NDEA were 50.2% and 1.7%, respectively. These results indicate that amines with ethyl groups have lower potentials for producing the corresponding N-nitrosamines than those with methyl groups. These differences in yields between amines with methyl and ethyl groups can be explained by the difference in electron density in the nitrogen atom of the amine, which influences the protonation of the amine and stabilization of intermediate species. These findings could be useful for enhancing source control of water and wastewater by regulating runoff or industrial wastewater containing high concentrations of specific N-nitrosamine precursors.

    DOI： 10.1016/j.eti.2021.101520

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  • Takashi Tomiyasu, Misato Nakagawa, Hitoshi Kodamatani, Ryo Kanzaki .  The influence of submarine volcano on seasonal changes in arsenic in the waters of Kagoshima Bay, southwestern Japan .  Environmental Earth Sciences80 ( 8 )   2021.4Reviewed

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    Authorship：Lead author,　Corresponding author   Language：English   Publishing type：Research paper (scientific journal)   Publisher：Environmental Earth Sciences  

    Volcanic activity is one of the primary sources of arsenic in nature, and chemical forms of arsenic discharged by volcanic activity are inorganic. Kagoshima Bay has active submarine volcano located in the 200 m deep basin of its northern part. Since dissolved inorganic arsenic is more toxic than organic arsenic it is important to understand the dispersion of discharged arsenic in seawater. To estimate the influence of arsenic emitted from the bottom vents seasonal changes in As(III) and As(V) concentrations in seawater were studied. There are few studies on the impact of arsenic discharged by submarine volcanos in the inner bay. The total concentrations of As(III) and As(V) (T-As) in seawater at the background site in Kagoshima Bay was 1.71 ± 0.35 μg L−1 (av. ± s.d.), similar to the world average value of 1.7 μg L−1. The highest T-As value at the nearest point to the submarine volcano, 3.48 μg L−1, was observed in summer. Since the vertical mixing of seawater cannot occur in summer due to the formation of the thermocline, the deep water is strongly affected by volcanic activity. The increase in T-As was caused by the increase in As(III) concentration suggesting the discharge of As(III) from the vents.

    DOI： 10.1007/s12665-021-09619-1

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  • Noda Kazutoshi, Kodamatani Hitoshi, Tomiyasu Takashi, Marumoto Kohji, Komai Takeshi, Aizawa Hidenobu .  Measurement System of Mercury in Water Samples by Reduction Vaporization Method Using a Quartz Crystal Microbalance .  IEEJ Transactions on Sensors and Micromachines141 ( 2 ) 50 - 54   2021

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    Language：Japanese   Publisher：The Institute of Electrical Engineers of Japan  

    <p>To reduce the environmental risks posed by mercury (Hg), a simple and rapid detection system for Hg in the environment is needed. We developed a simple Hg measurement method for detecting of Hg in liquid phase using quartz crystal microbalance (QCM-Hg). Mercury is reduced into Hg<sup>0</sup> by adding the reducing solution (SnCl<sub>2</sub>) to the divalent Hg<sup>2+</sup> in the sample solution. Then, Hg is turned into vapor in reactor bottle by flowing air. It (QCM-Hg) utilizes the direct reaction of Hg and the Au electrode of the quartz crystal element via the phenomenon of Au-Hg amalgamation. In the case of 0.0005 mg/L in liquid phase, a frequency shift of about 13 Hz is obtained using a 20 MHz quartz crystal element. This new detection system allows easy measurement of very low concentrations of Hg in liquid phase.</p>

    DOI： 10.1541/ieejsmas.141.50

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  • Kanzaki R. .  Enthalpy profile of pH-induced flocculation and redispersion of polyacrylic acid-coated nanoparticles in protic ionic liquid, N,N-diethylethanolammonium trifluoromethanesulfonate .  Journal of Molecular Liquids349   2021

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    Language：Japanese   Publisher：Journal of Molecular Liquids  

    Maghemite nanoparticles coated with polyacrylic acid (pAA) were dispersed in the protic ionic liquid, diethylethanolammonium trifluoromethanesulfonate (DEEAH+⋅TfO−), and the thermodynamics of particle dispersion was studied by means of potentiometric and calorimetric titrations over the entire accessible pH range. As previously reported, the domain of colloidal stability is divided into two pH regions, mildly acidic and basic, separated by a flocculation domain at an intermediate pH. In this study, solvent DEEAH+⋅TfO− was first characterized in terms of the thermodynamic parameters of two reference reactions: autoprotolysis and ionization of acetic acid. A negative autoprotolysis entropy is obtained due to hydrogen-bond formation between the neutralized solvent cation, DEEA, and the neighboring cation DEEAH+. This suggests that the solvent structure is reinforced by the formation of neutral species, being an opposite trend to both ethylammonium nitrate and water. Second, the ionization and flocculation of pAA-coated nanoparticles (CNps) in the ionic liquid were examined. The potentiometric results could be modeled using a simple pAA ionization, independent of the aggregation state over the entire pH range. However, the calorimetric titration detected extra heat generation in an acidic condition prior to flocculation, in addition to an ionization enthalpy of pAA of 30 kJ/mol. This exothermic contribution is attributed to a change in the solvation process of CNps in the ionic liquid. Herein, we propose a model in which different types of solvation in the acidic and basic domains are sufficient to ensure colloidal stability, while aggregation unfolds between the switching pH.

    DOI： 10.1016/j.molliq.2021.118146

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  • Kawabata Kuniyo, Watanabe Mai, Kitamura Yujin, Nakano Akinori, Tomiyasu Takashi .  Relationship between geology and <sup>222</sup>Rn concentration in hot springs and groundwater in Kagoshima, Japan .  Annual Meeting of the Geological Society of Japan2021 ( 0 ) 148   2021Relationship between geology and <sup>222</sup>Rn concentration in hot springs and groundwater in Kagoshima, Japan

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    Language：Japanese   Publisher：The Geological Society of Japan  

    DOI： 10.14863/geosocabst.2021.0_148

  • Takashi Tomiyasu, Christine Baransano, Yuriko Kono Hamada, Hitoshi Kodamatani, Ryo Kanzaki, Nuril Hidayati, Joeni Setijo Rahajoe .  Distribution of total and organic mercury in soils around an artisanal and small-scale gold mining area in West Java, Indonesia .  SN Applied Sciences2 ( 7 )   2020.6Reviewed International coauthorship

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    Authorship：Lead author,　Corresponding author   Language：English   Publishing type：Research paper (scientific journal)   Publisher：Springer Nature Switzerland  

    DOI： 10.1007/s42452-020-3008-5

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  • Kodamatani H. .  Detailed investigation of methylmercury accumulation in rice grain from Hg<sup>2+</sup>-spiked non-contaminated paddy field soils .  Chemosphere247   125827   2020.5Reviewed International journal

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：Chemosphere  

    DOI： 10.1016/j.chemosphere.2020.125827

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  • Takashi Tomiyasu,Yuriko Kono Hamada, Christine Baransano, Hitoshi Kodamatani, Akito Matsuyama, Ryusuke Imura, Nuril Hidayati, Joeni Setijo Rahajoe .  Mercury concentrations in paddy field soil and freshwater snails around a small-scale gold mining area, West Java, Indonesia .  Toxicology and Environmental Health Sciences12 ( 1 ) 23 - 29   2020.3Reviewed International coauthorship

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    Authorship：Lead author,　Corresponding author   Language：English   Publishing type：Research paper (scientific journal)   Publisher：Springer  

    DOI： 10.1007/s13530-020-00045-7

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  • KODAMATANI Hitoshi, SUGIHARA Kenta, TANISUE Taketo, KANZAKI Ryo, TOMIYASU Takashi .  Contamination, Decomposition, and Formation of <i>N</i>-Nitrosodimethylamine in Water Samples at the ng/L Level of Determination .  Analytical Sciences36 ( 11 ) 1393 - 1399   2020

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    Publisher：社団法人 日本分析化学会  

    <p>An ultra-sensitive analytical system that can determine the concentration of <i>N</i>-nitrosamines at the ng/L level without preconcentration was used to investigate the contamination, decomposition, and formation of <i>N</i>-nitrosodimethylamine (NDMA) and other <i>N</i>-nitrosamines in water samples during general analytical procedures. A preliminary experiment was performed to estimate the NDMA concentrations in ambient air. Since the air samples contained NDMA at concentrations in the range of 2.0 – 10.7 ng/m<sup>3</sup>, ambient air was identified as the source of NDMA contamination in water samples. We directly confirmed that the concentration of aqueous 10-ng/L NDMA samples stored in clear glass bottles decreased upon exposure to sunlight. Thus, to maintain the <i>N</i>-nitrosamine concentration, such samples must always be protected from sunlight during sampling. The existence of <i>N</i>-nitrosamines in experimental reagents, such as ranitidine and sodium hypochlorite solutions, was also confirmed, as was the formation of NDMA on an activated carbon solid-phase extraction cartridge.</p>

    DOI： 10.2116/analsci.20P162

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  • Takashi Tomiyasu, Yuriko Kono Hamada, Christine Baransano, Nuril Hidayati, Joeni Setijo Rahajoe .  Time variation in transfer amounts of mercury by a river system near an artisanal and small‐scale gold mining area in West Java, Indonesia .  Environmental Earth Sciences78 ( 24 )   2019.12Reviewed International coauthorship

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    Authorship：Lead author,　Corresponding author   Language：English   Publishing type：Research paper (scientific journal)   Publisher：Environmental Earth Sciences  

    DOI： 10.1007/s12665-019-8727-9

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  • Yuriko Kono Hamada, Takashi Tomiyasu .  The estimation of mercury exposure to workers through air deposition in the workshop of artisanal and small-scale gold mining .  Journal of Environment and Safety10 ( 2 ) 137 - 142   2019.9The estimation of mercury exposure to workers through air deposition in the workshop of artisanal and small-scale gold miningReviewed

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    DOI： https://doi.org/10.11162/daikankyo.E19RP0302

  • Ryo Kanzaki, Hitoshi Kodamatani, Takashi Tomiyasu .  Proton Thermodynamics in a Protic Ionic Liquid .  Chemistry A European Journal25 ( 59 ) 13500 - 13503   2019.8Reviewed

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    DOI： 10.1002/chem.201903485

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  • Mineshi Sakamoto, Takaaki Itai, Kohji Marumoto, Masumi Marumoto, Hitoshi Kodamatani, Takashi Tomiyasu, Hiromitsu Nagasaka, Keisuke Mori, Alexandre J. Poulain, José L. Domingo, Milena Horvat, Akito Matsuyama .  Mercury speciation in preserved historical sludge: Potential risk from sludge contained within reclaimed land of Minamata Bay, Japan .  Environmental Research180   108668   2019.8Reviewed

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：Environmental Research  

    DOI： 10.1016/j.envres.2019.108668

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  • Takashi Tomiyasu, Yuriko Kono, Hitoshi Kodamatani, Nuril Hidayati, Joeni Setijo Rahajoe .  Transport of mercury species by river from artisanal and small-scale gold mining in West Java, Indonesia .  Environmental Science and Pollution Research26 ( 24 ) 25262 - 25274   2019.6Reviewed International coauthorship

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    DOI： 10.1007/s11356-019-05718-6

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  • Kuniyo Kawabata, Yujin Kitamura and Takashi Tomiyasu .  Development of Estimation Method of 222Rn Level in Water Considering Its Diffusion from Polyethylene Bottle to Atmosphere .  Bunseki Kagaku68 ( 5 ) 333 - 338   2019Reviewed

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    Language：Japanese   Publishing type：Research paper (scientific journal)   Publisher：Japan Society for Analytical Chemistry  

    <p><sup>222</sup>Rn is a radioactive noble gas that occurs naturally in Earth's crust as an intermediate step in the normal radioactive decay chain of uranium series. A high concentration of radon exposure in air and water causes damage to human cells, therefore the radon concentration in buildings and the diffusive coefficient of shield films have been studied. On the other hand, Radon shows a high solubility for water, and thus a high mobility through groundwater in Earth's crust. The concentration of radon in crustal fluid and groundwater can provide a clue to understand the state of crustal deformation as crack formation and change in the strain state, because its release rate depends mainly on the rock surface area. The radon concentration in groundwater is usually measured on the sampling site, due to a decrease after sampling by its continuous decay and diffusion to air. To measure the radon concentration at a laboratory, we tried to estimate a diffusion coefficient of the radon for a polyethylene bottle used for keeping water samples in this study. We collected water samples from three hot springs at Sakurajima district in Kagoshima, Japan. We estimated the diffusion coefficient by measuring the radon concentration in the water at different times after several hours of keeping. The estimated diffusion coefficients are 1.6 - 2.4 × 10<sup>−11</sup> m<sup>2</sup>s<sup>−1</sup> (averaged: 1.9 × 10<sup>−11</sup> m<sup>2</sup>s<sup>−1</sup>). The values are similar to those from an experiment using polyethylene films, suggesting that the diffusion coefficient obtained in this study is reasonable. Concerning the error on the estimated diffusion coefficient obtained here, we used maximum residual value range of the estimated value, 20 %, because the residual error on the estimated values was larger than that on the measurement.</p>

    DOI： 10.2116/bunsekikagaku.68.333

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  • S. Murao, T. Tomiyasu, K. Ono, H. Shibata, N. Narisawa, and C. Takenaka .  Mercury distribution in artisanal and small-scale gold mining area: A case study of hot spots in Camarines Norte, Philippines .  International Journal of Environmental Science and Development10 ( 5 ) 122 - 129   2019Reviewed

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    DOI： 10.18178/ijesd.2019.10.5.1160

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  • Ryo Kanzaki, Hikaru Daiba, Hitoshi Kodamatani, Takashi Tomiyasu .  Validation of pH Standards and Estimation of the Activity Coefficients of Hydrogen and Chloride Ions in an Ionic Liquid, Ethylammonium Nitrate .  The Journal of Physical Chemistry B122 ( 46 ) 10593 - 10599   2018.11Reviewed

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    DOI： 10.1021/acs.jpcb.8b08870

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  • Hitoshi Kodamatani, Souta Katsuma, Azusa Shigetomi, Toshimune Hokazono, Ryusuke Imura, Ryo Kanzaki, Takashi Tomiyasu .  Behavior of mercury from the fumarolic activity of Mt. Myoko, Japan: Production of methylmercury and ethylmercury in forest soil，Environmental earth sciences .  Environmental earth sciences77 ( 13 ) 478 - 487   2018.6Reviewed

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    DOI： 10.1007/s12665-018-7616-y

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  • Takashi Tomiyasu, Hitoshi Kodamatani, Ryusuke Imura, Akito Matsuyama, Junko Miyamoto, Hirokatsu Akagi, David Kocman, Jože Kotnik, Vesna Fajon, Milena Horvat .  The dynamics of mercury near Idrija mercury mine, Slovenia: Horizontal and vertical distributions of total, methyl, and ethyl mercury concentrations in soils .  Chemosphere184   244 - 252   2017.10The dynamics of mercury near Idrija mercury mine, Slovenia: Horizontal and vertical distributions of total, methyl, and ethyl mercury concentrations in soilsReviewed International coauthorship

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  • Ryo Kanzaki, Shuma Uchida, Hitoshi Kodamatani, Takashi Tomiyasu .  Copper (II) Chloro Complex Formation Thermodynamics and Structure in Ionic Liquid, 1-Butyl-3-Methylimidazolium Trifluoromethanesulfonate .  The Journal of Physical Chemistry B121 ( 41 ) 9659 - 9665   2017.9Reviewed

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    DOI： 10.1021/acs.jpcb.7b06287

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  • Yuriko Hamada, Takashi Tomiyasu .  Development of a system to reduce the volume of mercury containing waste water from laboratories .  Journal of Environment and Safety8 ( 1 ) 17 - 23   2017.4Reviewed

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    DOI： http://doi.org/10.11162/daikankyo.17G0101

  • Hitoshi Kodamatani, Chihiro Maeda, Steven J. Balogh, Yabing H. Nollet, Ryo Kanzaki, Takashi Tomiyasu .  The influence of sample drying and storage conditions on methylmercury determination in soils and sediments .  Chemosphere173   380 - 386   2017.3The influence of sample drying and storage conditions on methylmercury determination in soils and sedimentsReviewed International coauthorship

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  • Hitoshi Kodamatani, Steven J. Balogh, Yabing H. Nollet, Akito Matsuyama, Vesna Fajon, Milena Horvat, Takashi Tomiyasu .  An inter-laboratory comparison of different analytical methods for the determination of monomethylmercury in various soil and sediment samples: A platform for method improvement .  Chemospher169   32 - 39   2017.2An inter-laboratory comparison of different analytical methods for the determination of monomethylmercury in various soil and sediment samples: A platform for method improvement

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  • Takashi Tomiyasu, Hitoshi Kodamatani, Yuriko Kono Hamada, Akito Matsuyama, Ryusuke Imura, Nuril Hidayati, Joeni Setijo Rahajoe .  Distribution of total mercury and methylmercury around the small-scale gold mining area along the Cikaniki River, Bogor, Indonesia .  Environmental Science and Pollution Research   2017.1Distribution of total mercury and methylmercury around the small-scale gold mining area along the Cikaniki River, Bogor, IndonesiaReviewed

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  • Hitoshi Kodamatani, Yoshimi Iwaya, Makoto Saga, Keiitsu Saito, Takahiro Fujioka, Shigeo Yamazaki, Ryo Kanzaki, Takashi Tomiyasu .  Ultra-sensitive HPLC-photochemical reaction-luminol chemiluminescence method for the measurement of secondary amines after nitrosation .  Analytica Chimica Acta   2016.11Ultra-sensitive HPLC-photochemical reaction-luminol chemiluminescence method for the measurement of secondary amines after nitrosationReviewed

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  • Hitoshi Kodamatani, Hitomi Yamasaki, Takeru Sakaguchi, Shinya Ito, Yoshimi Iwaya, Keiitsu Saito, Ryo Kanzaki, Takashi Tomiyasu .  Rapid method for monitoring of N-nitorosodimethylamine (NDMA) in drinking water at ng/L level without pre-concentration .  Journal of Chromatography A1460   202 - 206   2016Rapid method for monitoring of N-nitorosodimethylamine (NDMA) in drinking water at ng/L level without pre-concentrationReviewed

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  • Takashi Tomiyasu, Takuya Minato, Wilder Leonardo Gamboa Ruiz, Hitoshi Kodamatani, Yuriko Kono, Masayasu Hidaka, Kimihiko Oki, Ryo Kanzaki, Yoko Taniguchi, Akito Matsuyama .  Influence of submarine fumaroles on the seasonal changes in mercury species in the waters of Kagoshima Bay, Japan .  Marine Chemistry   2015.10Influence of submarine fumaroles on the seasonal changes in mercury species in the waters of Kagoshima Bay, JapanReviewed

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  • Wilder Leonardo Gamboa Ruiz, Takashi Tomiyasu .  Distribution of mercury in sediments from Kagoshima Bay, Japan, and its relationship with physical and chemical factors .  Environmental Earth Sciences   2015.2Distribution of mercury in sediments from Kagoshima Bay, Japan, and its relationship with physical and chemical factorsReviewed

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  • Takashi Tomiyasu, Shinya Takenaka, Yukiko Noguchi,Hitoshi Kodamatani, Akito Matsuyama, Kimihiko Oki, Yuriko Kono, Ryo Kanzaki, and Hirokatsu Akagi .  Estimation of the residual total mercury in marine sediments of Minamata Bay after a pollution prevention project .  Marine Chemistry159   19 - 24   2014.2Estimation of the residual total mercury in marine sediments of Minamata Bay after a pollution prevention projectReviewed

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  • 河野百合子、冨安卓滋 .  2010年から2012年における鹿児島市大気中水銀濃度変動 .  分析化学・公益社団法人 日本分析化学会63 ( 1 ) 17 - 21   2014.12010年から2012年における鹿児島市大気中水銀濃度変動Reviewed

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  • Takashi Tomiyasu, Yuriko Kono, Hitoshi Kodamatani, Nuril Hidayati, Joeni S. Rahajoe .  The distribution of mercury around the small-scale gold mining area along the Cikaniki river, Bogor, Indonesia .  Environmental Research125   12 - 19   2013.8The distribution of mercury around the small-scale gold mining area along the Cikaniki river, Bogor, IndonesiaReviewed

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  • Yuriko Kono, Takashi Tomiyasu .  Quantitative Evaluation of Real-time Measurements of Atmospheric Mercury in a Mercury- contaminated Area .  Journal of Environment and Safety4 ( 2 ) 153 - 157   2013.8Quantitative Evaluation of Real-time Measurements of Atmospheric Mercury in a Mercury- contaminated AreaReviewed

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  • Hitoshi Kodamatani, Takashi Tomiyasu .  Selective determination method for measurement of methylmercury and ethylmercury in soil/sediment samples using high-performance liquid chromatography-chemiluminescence detection coupled with simple extraction technique .  Journal of Chromatography A，Elsevier1228   155 - 159   2013.5Selective determination method for measurement of methylmercury and ethylmercury in soil/sediment samples using high-performance liquid chromatography-chemiluminescence detection coupled with simple extraction techniqueReviewed

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  • Hitoshi Kodamatani, Akito Matsuyama, Keiitsu Saito, Yuriko Kono, Ryo Kanzaki, Takashi Tomiyasu .  Sensitive determination method for mercury ion, methyl-, ethyl-, and phenyl-mercury in water and biological samples using high-performance liquid chromatography with chemiluminescence detection .  Analytical Sciences, The Japan Society for Analytical Chemistry28 ( 10 ) 959 - 965   2012.10Sensitive determination method for mercury ion, methyl-, ethyl-, and phenyl-mercury in water and biological samples using high-performance liquid chromatography with chemiluminescence detectionReviewed

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  • Yuriko Kono, Joeni S. Rahajoe, Nuril Hidayati, Hitoshi Kodamatani, Takashi Tomiyasu .  Using native epiphytic ferns to estimate the atmospheric mercury levels in a small-scale gold mining area of West Java, Indonesia .  Chemosphere89   241 - 248   2012.5Using native epiphytic ferns to estimate the atmospheric mercury levels in a small-scale gold mining area of West Java, IndonesiaReviewed

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  • Takashi Tomiyasu, Akito Matsuyama, Ryusuke Imura, Hitoshi Kodamatani, Junko Miyamoto, Yuriko Kono, David Kocman, Joze Kotnik, Vesna Fajon, Milena Horvat .  The distribution of Total and methylmercury concentrations in soils near the Idrija mercury mine, Slovenia, and the dependence of the mercury concentrations on the chemical composition and organic carbon levels of the soil .  Environmental Earth Sciences65 ( 4 ) 1309 - 1322   2012.1The distribution of Total and methylmercury concentrations in soils near the Idrija mercury mine, Slovenia, and the dependence of the mercury concentrations on the chemical composition and organic carbon levels of the soilReviewed

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  • 冨安 卓滋，廣瀬 公人，児玉谷 仁，穴澤 活郎，神崎 亮，河野 百合子，志賀 美英 .  中国雲南省个旧市錫鉱山周辺土壌における総ヒ素濃度分布 .  分析化学61 ( 1 ) 21 - 29   2012.1中国雲南省个旧市錫鉱山周辺土壌における総ヒ素濃度分布Reviewed

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  • Hitoshi Kodamatani, Shigeo Yamazaki, Keiitsu Saito, Yu Komatsu, Takashi Tomiyasu .  Rapid Method for Simultaneous Determination of Nitrite and Nitrate in Water Samples Using Short-Column Ion-Pair Chromatographic Separation, Photochemical Reaction, and Chemiluminescence Detection .  Analytical Sciences27 ( 2 ) 187   2011.2Rapid Method for Simultaneous Determination of Nitrite and Nitrate in Water Samples Using Short-Column Ion-Pair Chromatographic Separation, Photochemical Reaction, and Chemiluminescence DetectionReviewed

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  • H. Kodamatani, R. Kanzaki, K. Saito, Y. Kono, T. Tomiyasu .  Determination of organic and inorganic mercury species as emetine dithiocarbamate complexes by high-performance liquid chromatography with electrogenerated tris(2,2’-bipyridine)ruthenium(III) chemiluminescence detection .  Analytical Letters44   2769 - 2779   2011.1Determination of organic and inorganic mercury species as emetine dithiocarbamate complexes by high-performance liquid chromatography with electrogenerated tris(2,2’-bipyridine)ruthenium(III) chemiluminescence detectionReviewed

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  • Akito Matsuyama, Tomomi Eguchi, Ikuko Sonoda, Akihide Tada, Shinichirou Yano, Akira Tai, Kohji Marumoto, Takashi Tomiyasu and Hirokatsu Akagi .  Mercury Speciation in the Water of Minamata Bay, Japan .  Water, Air, & Soil Pollution218 ( 42008 ) 399 - 412   2011Mercury Speciation in the Water of Minamata Bay, JapanReviewed

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  • Tetsuo Ando, Megumi Yamamoto, Takashi Tomiyasu, Mayumi Tsuji, Suminori Akiba .  Mercury Distribution in Seawater of Kagoshima Bay near the Active Volcano, Mt. Sakurajima in Japan .  Bulletin of Environmental Contamination and Toxicology84   477 - 481   2010.1Mercury Distribution in Seawater of Kagoshima Bay near the Active Volcano, Mt. Sakurajima in JapanReviewed

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  • Yuriko Kono, Takashi Tomiyasu .  Biomonitoring of atmospheric mercury levels with the epiphytic fern Lepisorus thunbergianus (Polypodiaceae) .  Chemosphere77   1387 - 1392   2009.10Biomonitoring of atmospheric mercury levels with the epiphytic fern Lepisorus thunbergianus (Polypodiaceae)Reviewed

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  • H. Kodamatani, S. Yamazaki, K. Saitou, T. Tomiyasu, Y. Komatsu .  Selective determination method for measurement of nitrite and nitrate in water samples using high-performance liquid chromatography with post-column photochemical reaction and chemiluminescence detection .  Journal of Chromatography A1216   3163 - 3167   2009.4Selective determination method for measurement of nitrite and nitrate in water samples using high-performance liquid chromatography with post-column photochemical reaction and chemiluminescence detectionReviewed

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  • H. Kodamatani, S. Yamazaki, K. Saitou, A. Ampossa-Karikari, N. Kishikawa, N. Kuroda, T. Tomiyasu, Y. Komatsu .  Highly sensitive method for determination of N-nitrosamines using high-performance liquid chromatography with online UV irradiation and luminal chemiluminescence detection .  Journal of Chromatography A1216   92 - 98   2009.1Highly sensitive method for determination of N-nitrosamines using high-performance liquid chromatography with online UV irradiation and luminal chemiluminescence detectionReviewed

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  • J. Miyamoto, Y. Kono, T. Tomiyasu, and R. Imura .  Measurement of Mercury Contents in Parmotrema tinctorum (Parmeriaceae) around Sakurajima volcano, Kagoshima, Japan .  Lichenology7 ( 2 ) 143 - 151   2008.12Measurement of Mercury Contents in Parmotrema tinctorum (Parmeriaceae) around Sakurajima volcano, Kagoshima, JapanReviewed

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  • Takashi Tomiyasu, Akito Matsuyama, Tomomi Eguchi, Kohji Marumoto, Kimihiko Oki and Hirokatsu Akagi .  Speciation of mercury in water at the bottom of Minamata Bay, Japan .  Marine Chemistry112   102 - 106   2008Speciation of mercury in water at the bottom of Minamata Bay, JapanReviewed

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  • 穴澤活郎, 篠村善徳, 冨安卓滋 .  「ほたるの里」徳島県吉野川美郷地区における抗廃水の重金属挙動と対策試案 .  環境情報科学論文集21   601 - 606   2007.11「ほたるの里」徳島県吉野川美郷地区における抗廃水の重金属挙動と対策試案Reviewed

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  • T. Tomiyasu, T. Eguchi, M. Yamamoto, K. Anazawa, H. Sakamoto, T. Ando, M. Nedachi and K. Marumo .  Influence of submarine fumaroles on the distribution of mercury in the sediment of Kagoshima Bay, Japan .  Marine Chemistry107   173 - 183   2007.8Influence of submarine fumaroles on the distribution of mercury in the sediment of Kagoshima Bay, JapanReviewed

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  • K. Anazawa, H. Sakamoto, T. Tomiyasu .  Influence of inginite on the chemistry of river water in Shirasu plateau, Japan .  Hydrogeology Journal15   409 - 417   2007.3Influence of inginite on the chemistry of river water in Shirasu plateau, JapanReviewed

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  • 釜田淳平、穴澤活郎、坂元隼雄、冨安卓滋 .  イオン強度補正を施した電気伝導度に基づく陸水分析値の評価法 .  分析化学55 ( 11 ) 815 - 819   2006.11イオン強度補正を施した電気伝導度に基づく陸水分析値の評価法Reviewed

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  • T. Tomiyasu, A. Matsuyama, T. Eguchi, Y. Fuchigami, K. Oki, M. Horvat, R. Rajar and H. Akagi .  Spatial variation of mercury in sediment of Minamata Bay, Japan .  Science of the Total Environment368 ( ※ ) 283 - 290   2006.8Spatial variation of mercury in sediment of Minamata Bay, JapanReviewed

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  • T. Tomiyasu, M. Eguchi, H. Sakamoto and K. Anazawa .  Seasonal change and vertical movement of atmospheric mercury at Kagoshima city in relation with Sakurajima Volcano, Japan. .  Geochemical Journal40 ( ※ ) 253 - 263   2006.4Seasonal change and vertical movement of atmospheric mercury at Kagoshima city in relation with Sakurajima Volcano, Japan.Reviewed

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  • T. Tomiyasu, S. Aikou, K. Anazawa and H. Sakamoto .  A Kinetic Method for the Determination of Copper(II) by its Catalytic Effect on the Oxidation of 3-Methyl-2-benzothiazolinone Hydrazone with Hydrogen Peroxide: A Mechanistic Study .  Analytical Sciences21 ( ※ ) 917 - 922   2005.8A Kinetic Method for the Determination of Copper(II) by its Catalytic Effect on the Oxidation of 3-Methyl-2-benzothiazolinone Hydrazone with Hydrogen Peroxide: A Mechanistic Study Reviewed

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  • T. Tomiyasu, T. Matsuo, J. Miyamoto, R. Imura, K. Anazawa, H. Sakamoto .  Low Level Mercury Uptake by Plants from Natural Environments - Mercury Distribution in Solidago altissima L. - .  Environmental Sciences12 ( 4 ) 231 - 238   2005.8 Low Level Mercury Uptake by Plants from Natural Environments - Mercury Distribution in Solidago altissima L. -Reviewed

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  • T. Tomiyasu, M. Nonaka, M. Uchikado, K. Anazawa, and H. Sakamoto .  Kinetic determination of total iodine in urine and foodstuffs using a mixed acid as a pretreatment agent .  Analytical Sciences20 ( ※ ) 391 - 393   2004.2Kinetic determination of total iodine in urine and foodstuffs using a mixed acid as a pretreatment agentReviewed

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  • R. Rajar, D. Zagar, M. Cetina, H. Akagi, S. Yano, T. Tomiyasu, M. Horvat .  Application of three-demensional mercury cycling model to coastal seas .  Ecological Modelling171 ( ※ ) 139 - 155   2004.2Application of three-demensional mercury cycling model to coastal seasReviewed

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  • K. Anazawa, Y. Kaida, Y. Shinomura, T. Tomiyasu, and H. Sakamoto .  Heavy-metal distribution in river waters and sediments around a “Firefly Village”, Shikoku, Japan: application of multivariate analysis .  Analytical Sciences20 ( ※ ) 79 - 84   2004.1Heavy-metal distribution in river waters and sediments around a “Firefly Village”, Shikoku, Japan: application of multivariate analysisReviewed

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  • 清原拓二，穴澤活郎，坂元隼雄，冨安卓滋 .  緑茶殻およびコーヒー豆殻への水銀吸着能 .  分析化学52 ( 10 ) 887 - 890   2003.10緑茶殻およびコーヒー豆殻への水銀吸着能Reviewed

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  • 矢野真一郎,多田彰秀,押川英夫,中村武弘,赤木洋勝,松山明人,冨安卓滋,Rudolf Rajar,Milena Horvat .  水俣湾における底泥動態の現地観測 .  海岸工学論文集50   1006 - 1010   2003.10水俣湾における底泥動態の現地観測Reviewed

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  • T. Tomiyasu, M. Okada, R. Imura, H. Sakamoto .  Vertical variation in the concentration of mercury in soils around Sakurajima Volcano, Southern Kyushu, Japan .  Science of the Total Environment304   221 - 230   2003.4Vertical variation in the concentration of mercury in soils around Sakurajima Volcano, Southern Kyushu, JapanReviewed

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  • H. Sakamoto, S. Fujita, T. Tomiyasu, K. Anazawa .  Mercury concentrations in Fumarolic gas condensates and mercury chemical forms in fumaloric gases -case study on Satsuma-Iwojima Volcano- .  Bulletin of the Volcanological Society of Japan48 ( 1 ) 27 - 33   2003.3Mercury concentrations in Fumarolic gas condensates and mercury chemical forms in fumaloric gases -case study on Satsuma-Iwojima Volcano-Reviewed

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  • 江口朋美,冨安卓滋 .  分別抽出/還元気化冷原子吸光光度法による鹿児島湾及び水俣湾底質中の水銀の化学形評価 .  分析化学51 ( 9 ) 859 - 864   2002.9分別抽出/還元気化冷原子吸光光度法による鹿児島湾及び水俣湾底質中の水銀の化学形評価Reviewed

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  • T. Ando, M. Yamamoto, T. Tomiyasu, J. Hashimoto, T. Miura, A. Nakano, S. Akiba .  Bioaccumulation of mercury in a vestimentiferan worm living in Kagoshima Bay, Japan .  Chemosphere49   477 - 484   2002.8Bioaccumulation of mercury in a vestimentiferan worm living in Kagoshima Bay, Japan Reviewed

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  • T. Tomiyasu, Y. Konagayoshi, K. Anazawa, and H. Sakamoto .  A kinetic method for the determination of nitrite by its catalytic effect on the oxidation of chlorpromazine with nitric acid .  Analytical Sciences17   1437 - 1440   2001.12A kinetic method for the determination of nitrite by its catalytic effect on the oxidation of chlorpromazine with nitric acidReviewed

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  • H. Sakamoto, Y. Susa, H. Ishiyama, T. Tomiyasu, and K. Anazawa .  Determination of trace amounts of total arsenic in environmental samples by hydride generation flow injection-AAS using a mixed acid as a pretreatment agent .  Analytical Sciences17   1067 - 1071   2001.9Determination of trace amounts of total arsenic in environmental samples by hydride generation flow injection-AAS using a mixed acid as a pretreatment agentReviewed

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    Language：English   Publishing type：Research paper (scientific journal)  

  • M. Logar, M. Horvat, H. Akagi, T. Ando, T. Tomiyasu and V. Fajon .  Determination of total mercury and monomethylmercury compounds in water samples from Minamata Bay, Japan: an interlaboratory comparative study of different analytical techniques .  Applied Organometallic Chemistry15   515 - 526   2001.5Determination of total mercury and monomethylmercury compounds in water samples from Minamata Bay, Japan: an interlaboratory comparative study of different analytical techniquesReviewed

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    Language：English   Publishing type：Research paper (scientific journal)  

  • K. Anazawa, T. Tomiyasu, H. Sakamoto .  Simultaneous Determination of Fluorine and Chlorine in Rocks by Ion Chromatography in Combination with Alkali Fusion and Cation-Exchange Pretreatment .  Analytical Sciences17   217 - 219   2001.1Simultaneous Determination of Fluorine and Chlorine in Rocks by Ion Chromatography in Combination with Alkali Fusion and Cation-Exchange PretreatmentReviewed

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    Language：English   Publishing type：Research paper (scientific journal)  

▼display all

MISC

  • 火山噴火と大気環境　－第５講　火山噴出物の大気動態・環境影響－ ③水銀 Reviewed

    冨安　卓滋、濵田　百合子、坂元　隼雄

    大気環境学会誌   51 ( 2 )   A20 - A28   2016.3

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    Language：Japanese   Publishing type：Article, review, commentary, editorial, etc. (scientific journal)  

Presentations

  • 木下陽仁, 中村謙吾, 駒井武, 児玉谷仁, 冨安卓滋, 丸本幸治, 愛澤秀信, 野田和俊   小規模金採掘における多媒体間の物質移動を考慮した水銀の暴露評価  

    第 29 回環境地質学シンポジウム  社会地質学会

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    Event date： 2019.11

    Language：Japanese  

    Venue：東京  

    国内学会

  • 野田和俊, 愛澤秀信, 丸本幸治, 冨安卓滋, 駒井武, 丸本倍美, 児玉谷仁, 中村謙吾   水晶振動子を利用した個人ばく露用高感度ロガーの検知特性  

    第36回「センサ・マイクロマシンと応用システム」シンポジウム  電気学会 センサ・マイクロマシン部門

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    Event date： 2019.11

    Language：Japanese  

    Venue：静岡  

    国内学会

  • 北川俊輝,　河西大悟,　下内 良平,　児玉谷仁,　神﨑亮, 冨安卓滋   水俣湾周辺底質中残留水銀濃度分布と底質化学組成  

    日本地球化学会第66回年会  日本地球化学会

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    Event date： 2019.9

    Language：Japanese   Presentation type：Poster presentation  

    Venue：東京  

    国内会議

  • 野添千裕, 児玉谷仁, 神﨑亮, 冨安卓滋   鹿児島湾海底質中水銀及びセレン濃度分布と海底熱水噴気活動の影響  

    日本地球化学会第66回年会  日本地球化学会

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    Event date： 2019.9

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：東京  

    国内会議

  • 酒匂美夏, 児玉谷仁, 冨安卓滋, 神﨑亮   トリフロメタンスルホン酸塩イオン液体の酸塩基性及びそのポリアクリル酸被覆ナノ粒子の分散のｐH応答への影響  

    日本分析化学会第68年会  日本分析化学会

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    Event date： 2019.9

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：千葉  

    国内会議

  • KODAMATANI Hitoshi, HAMASUNA Shintaro, HONDA Kana, YOKOTA Takahisa, ICHITANI Katsuyuki, KANZAKI Ryo, TOMIYASU Takashi   BEHAVIOR OF MEHG PRODUCTION IN A HG(II) ION SPIKED PADDY FIELD SOIL DURING MULTI-YEAR RICE CULTIVATION AND THE MECHANISM OF MEHG ACCUMULATION IN RICE GRAIN   International conference

    14th International Conference on Mercury as a Global Pollutant  14th International Conference on Mercury as a Global Pollutant

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    Event date： 2019.9

    Language：English   Presentation type：Poster presentation  

    Venue：Krakow, Poland  

    国際会議

  • Takashi Tomiyasu, Yuriko Hamada, Christine Baransano, Henderite Loisa Ohee   The distribution of mercury around the Lake Sentani, Papua, Indonesia   International conference

    14th International Conference on Mercury as a Global Pollutant  14th International Conference on Mercury as a Global Pollutant

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    Event date： 2019.9

    Language：English   Presentation type：Poster presentation  

    Venue：Krakow, Poland  

    国際学会

  • YASU MATSU Sora, KODAMATANI Hitoshi, KANZAKI Ryo, TAKENAKA Chisato, MURAO Satoshi, MIYAGAWA Shuichi, NONAKA Kenichi, IKEGUCHI Akiko, A. NAVARRETE Ian, TOMIYASU Takashi   The dynamics of mercury around the artisanal and small-scale gold mining area, Camarines Norte, Philippines   International conference

    14th International Conference on Mercury as a Global Pollutant  14th International Conference on Mercury as a Global Pollutant

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    Event date： 2019.9

    Language：English   Presentation type：Poster presentation  

    Venue：Krakow, Poland  

    国際学会

  • TOMIYASU Takashi, KODAMATANI Hitoshi, ANDRIO David, NODA Kazutoshi   The distribution of mercury discharged by ASGM activity along the Kuantan River, Riau Province, Sumatra, Indonesia   International conference

    14th International Conference on Mercury as a Global Pollutant  14th International Conference on Mercury as a Global Pollutant

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    Event date： 2019.9

    Language：English   Presentation type：Poster presentation  

    Venue：Krakow, Poland  

    国際学会

  • 野添千裕, 児玉谷仁, 神崎亮, 冨安卓滋   鹿児島湾産魚類に含まれるセレン及び水銀と海底熱水噴気活動による影響  

    第79回分析化学討論会  日本分析化学会

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    Event date： 2019.5

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：福岡  

    国内会議

  • 久保翔太郎, 児玉谷仁, 神崎亮, 冨安卓滋   222 nm光源による光化学反応を用いた硝酸・亜硝酸イオンの高感度分析法開発  

    第79回分析化学討論会  日本分析化学会

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    Event date： 2019.5

    Language：Japanese   Presentation type：Poster presentation  

    Venue：福岡  

    国内会議

  • 谷末武人，児玉谷仁，藤岡貴浩，神崎亮，冨安卓滋   水処理過程におけるN-ニトロソアミン類生成機構の検討  

    日本分析化学会第67年会  日本分析化学会

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    Event date： 2018.9

    Language：Japanese   Presentation type：Poster presentation  

    Venue：宮城  

    国内学会

  • 酒匂美夏，児玉谷仁，神崎亮，冨安卓滋   イオン液体中におけるポリアクリル酸被覆ナノ粒子の凝集－再分散のpH応答  

    日本分析化学会第67年会  日本分析化学会

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    Event date： 2018.9

    Language：Japanese   Presentation type：Poster presentation  

    Venue：宮城  

    国内学会

  • 久保翔太郎，児玉谷仁，神崎亮，冨安卓滋   222 nm光源による硝酸・亜硝酸イオンの光化学反応  

    日本分析化学会第67年会  日本分析化学会

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    Event date： 2018.9

    Language：Japanese   Presentation type：Poster presentation  

    Venue：宮城  

    国内学会

  • 児玉谷仁   化学発光反応を利用したメチル水銀分析法の開発と環境試料への応用   Invited

    103回プラズマ分光分析研究会  プラズマ分光分析研究会

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    Event date： 2018.9

    Language：Japanese   Presentation type：Oral presentation (invited, special)  

    Venue：千葉  

    国内学会

  • 安松空良, 児玉谷仁, 神崎亮, 竹中千里, 冨安卓滋   フィリピン，カマリネスノルテ州小規模金精錬地域における水銀動態  

    第55回化学関連支部合同九州大会  化学関連支部

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    Event date： 2018.6

    Language：Japanese   Presentation type：Poster presentation  

    Venue：福岡  

    国内学会

  • 安松空良，児玉谷仁，神崎亮，竹中千里，冨安卓滋   フィリピン，カマリネスノルテ州小規模金精錬地域及びその周辺における水銀分布  

    第78回分析化学討論会  日本分析化学会

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    Event date： 2018.5

    Language：Japanese   Presentation type：Poster presentation  

    Venue：山口  

    国内学会

  • 野添千裕，児玉谷仁，神崎亮，冨安卓滋   水素化物発生原子吸光光度法による生体試料中Seの定量  

    第78回分析化学討論会  日本分析化学会

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    Event date： 2018.5

    Language：Japanese   Presentation type：Poster presentation  

    Venue：山口  

    国内学会

  • 久保翔太郎，児玉谷仁，神崎亮，冨安卓滋   光化学反応とルミノール化学発光を利用した硝酸・亜硝酸の高感度分析法の開発  

    第78回分析化学討論会  日本分析化学会

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    Event date： 2018.5

    Language：Japanese   Presentation type：Poster presentation  

    Venue：山口  

    国内学会

  • 谷末武人，児玉谷仁，藤岡貴浩，神崎亮，冨安卓滋   HPLC-ルミノール化学発光検出を利用したN-ニトロソアミン類生成反応の検討  

    第78回分析化学討論会  日本分析化学会

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    Event date： 2018.5

    Language：Japanese   Presentation type：Poster presentation  

    Venue：山口  

    国内学会

  • 北村有迅，山口飛鳥，亀田純，冨安卓滋，児玉谷仁，清家弘治，川端訓代，濱田洋平   姶良カルデラ周辺の温泉と地質構造の関係  

    日本地球惑星科学連合2018年大会  日本地球化学会

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    Event date： 2018.5

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：千葉  

    国内学会

  • 川端訓代，森川徳敏，風早康平，高橋浩，高橋正明，児玉谷仁，鹿野和彦，北村有迅，冨安卓滋   八代海における海底地すべり調査計画  

    日本地球惑星科学連合2018年大会  日本地球化学会

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    Event date： 2018.5

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：千葉  

    国内学会

  • 児玉谷仁   水銀汚染土壌からのメチル水銀生成と稲（コメ）への蓄積   Invited

    平成29年度メチル水銀ミーティング  環境省

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    Event date： 2017.12

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：東京  

    国内学会

  • 野田 和俊，愛澤 秀信，丸本 幸治，丸本 倍美，冨安 卓滋，児玉谷 仁，駒井 武，中村 謙吾   小規模金採掘地域での水銀使用作業環境個人ばく露測定システムの開発  

    第34回センサ・マイクロマシンと応用システム 

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    Event date： 2017.10 - 2017.11

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：広島  

  • 野田 和俊，愛澤 秀信，丸本 幸治，丸本 倍美，冨安 卓滋，児玉谷 仁，駒井 武，中村 謙吾   水晶振動子を利用した水銀作業環境個人ばく露測定システムの検知特性センサー  

    資源・素材＆EARTH 2017 

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    Event date： 2017.9

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：札幌  

  • Mineshi Sakamoto, Takaaki Itai, Koji Marumoto, Keisuke Mori, Mlena Horvat, Alexandre Poulain, Hitoshi Kodamatani, Takashi Tomiyasu   Mercury speciation in preserved sludge which is estimated to be remaining under the reclaimed land area of Minamata Bay Japan   International conference

    Eurotox 2017 

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    Event date： 2017.9

    Language：English   Presentation type：Poster presentation  

    Venue：Bratislava, Slovak  

  • 神崎 亮，児玉谷 仁，冨安 卓滋   1-ブチル-3-メチルイミダゾリウム系イオン液体中における銅－クロロ錯生成反応  

    日本分析化学会第66年会 

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    Event date： 2017.9

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：東京  

  • 安松 空良，外薗 寿宗，児玉谷 仁，神崎 亮，冨安 卓滋   鹿児島県旧金鉱山周辺地域における土壌中水銀の形態別分布  

    日本分析化学会第66年会 

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    Event date： 2017.9

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：東京  

  • 三ツ井 亮洸，児玉谷 仁，神崎 亮，冨安 卓滋   鹿児島湾における海水中水銀化学種の濃度変動と海底熱水噴気活動の影響  

    日本分析化学会第66年会 

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    Event date： 2017.9

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：東京  

  • 谷末武人，児玉谷 仁，藤岡 貴浩，神崎 亮，冨安 卓滋   HPLC-PR-CL法を利用したN-ニトロソジメチルアミン前駆物質の探索と評価  

    日本分析化学会第66年会 

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    Event date： 2017.9

    Language：Japanese   Presentation type：Poster presentation  

    Venue：東京  

  • 内田 葵，児玉谷 仁，武内 章記，丸本 幸治，堀川 恵司，神崎 亮，冨安 卓滋   東シナ海および周辺海域底質の水銀濃度分布  

    日本分析化学会第66年会 

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    Event date： 2017.9

    Language：Japanese   Presentation type：Poster presentation  

    Venue：東京  

  • KODAMATANI Hitoshi, DAIBA Yuri, TAKEUCHI Akinori, ICHITANI Katsuyuki, KANZAKI Ryo, TOMIYASU Takashi   PRODUCTION OF METHYLMERCURY IN HG(II) ION-ADDED FLOODED PADDY FIELD SOIL AND ITS ACCUMULATION IN RICE   International conference

    ICMGP2017 

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    Event date： 2017.7

    Language：English   Presentation type：Poster presentation  

    Venue：Providence, RI, USA  

  • TOMIYASU Takashi, BARANSANO Christine, HAMADA Yuriko, KODAMATANI Hitoshi, KANZAKI Ryo, HIDAYATI Nuril, RAHAJOE Joeni   DISTRIBUTION OF TOTAL AND ORGANIC MERCURY CONCENTRATIONS IN SOILS AROUND ASGM AREA, WEST JAVA, INDONESIA, AND DEPENDENCE OF MERCURY CONCENTRATIONS ON ORGANIC MATTER CONTENT   International conference

    ICMGP2017 

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    Event date： 2017.7

    Language：English   Presentation type：Poster presentation  

    Venue：Providence, RI, USA  

  • 児玉谷仁，増長洋登，丸山昇，藤岡貴浩，冨安卓志   イオン交換モジュールを利用したN-ニトロソアミン類のHPLC-化学発光検出  

    第77回分析化学討論会 

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    Event date： 2017.5

    Language：Japanese   Presentation type：Poster presentation  

    Venue：京都  

  • 谷末武人，児玉谷仁，藤岡貴浩，神崎亮，冨安卓滋   水処理過程におけるN-ニトロソジメチルアミン生成能評価法の再検討  

    第77回分析化学討論会 

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    Event date： 2017.5

    Language：Japanese   Presentation type：Poster presentation  

    Venue：京都  

  • 中川美里，児玉谷仁，神崎亮，冨安卓滋   水素化物発生原子吸光光度法による環境水中のヒ素およびアンチモンの定量  

    第77回分析化学討論会 

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    Event date： 2017.5

    Language：Japanese   Presentation type：Poster presentation  

    Venue：京都  

  • 三ツ井亮洸，児玉谷仁，神崎 亮，冨安卓滋   鹿児島湾奥部における海水中水銀濃度分布の季節変動  

    第77回分析化学討論会 

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    Event date： 2017.5

    Language：Japanese   Presentation type：Poster presentation  

    Venue：京都  

  • 安松空良，児玉谷仁，神崎亮，冨安 卓滋   鹿児島県北部旧金鉱山周辺における水銀動態  

    第77回分析化学討論会 

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    Event date： 2017.5

    Language：Japanese   Presentation type：Poster presentation  

    Venue：京都  

  • T. Tomiyasu, M. Sato, A. Matsuyama, K. Oki and H. Akagi   The distribution and dynamics of mercury in Minamata Bay, Japan   Invited International conference

    ICBB 2016 & ICCEMB 2016 

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    Event date： 2016.12

    Language：English   Presentation type：Oral presentation (invited, special)  

  • 内田脩麻，神崎亮，冨安卓滋，児玉谷仁，中村太悟   イオン液体 1-ブチル-3-メチルイミダゾリウムビス{(トリフルオロメチル)スルホニル}アミド(C4mimTf2N)中における銅（Ⅱ）クロロ錯生成反応熱力学  

    日本分析化学会第65年会  日本分析化学会第65年会

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    Event date： 2016.9

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：札幌  

  • 児玉谷 仁，森﨑心太郎，児玉裕里，一谷勝之，神崎亮，冨安 卓滋   無機水銀汚染を受けた水田土壌からのメチル水銀の生成と米への蓄積  

    日本分析化学会第65年会  日本分析化学会第65年会

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    Event date： 2016.9

    Language：Japanese   Presentation type：Poster presentation  

    Venue：札幌  

  • 児玉谷　仁，岩屋良美，嵯峨慎，齊藤恵逸，山崎重雄，神崎亮，冨安卓滋   ニトロソ化を利用した第二級アミンの高感度測定法の開発  

    第23回クロマトグラフィーシンポジウム  第23回クロマトグラフィーシンポジウム

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    Event date： 2016.6

    Language：Japanese   Presentation type：Poster presentation  

    Venue：甲府  

  • 1) Hitoshi Kodamatani, Souta Katsuma, Azusa Shigetomi, Toshimune Hokazono, Ryusuke Imura, Ryo Kanzaki, Takashi Tomiyasu   Emission and behavior of Mercury, from the fumarolic activity of Minamijigokudani, Mt. Myoko, Japan   International conference

    PACIFICHEM2015 

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    Event date： 2015.12

    Language：English   Presentation type：Poster presentation  

    Venue：米国ハワイ州  

  • 台場 輝，児玉谷 仁，冨安 卓滋，神崎 亮   プロトン性イオン液体硝酸エチルアンモニウム(EAN)中におけるpH標準の選定および決定  

    日本分析化学会第64年会  日本分析化学会

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    Event date： 2015.9

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：九州大学  

  • Wilder Leonardo Gamboa Ruiz ・ 冨安 卓滋 ・ 児玉谷 仁 ・ 神﨑 亮   Mercury in the Sediments of Kagoshima Bay (Southern Kyushu): Sources, Distribution and Controlling Factors  

    日本分析化学会第64年会  日本分析化学会

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    Event date： 2015.9

    Language：English   Presentation type：Oral presentation (general)  

    Venue：九州大学  

  • 冨安 卓滋・ 御手洗 麻衣・ 児玉谷 仁・ 河野 百合子・ Wilder Leonardo Gamboa Ruiz・ 神崎 亮   鹿児島湾海水中水銀濃度変動に及ぼす海底噴気熱水活動の影響  

    日本分析化学会第64年会  日本分析化学会

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    Event date： 2015.9

    Language：Japanese   Presentation type：Oral presentation (invited, special)  

    Venue：九州大学  

  • Takashi Tomiyasu, Hitoshi Kodamatani, Yuriko Kono, Akito Matsuyama, Ryusuke Imura, Nuril Hidayati, Joeni Setijo Rahajoe   Mercury concentration in paddy field soil and freshwater snails around the small-scale gold mining area, Cikaniki River, West Java, Indonesia   International conference

    12th International Conference on Mercury as a Global Pollutant 

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    Event date： 2015.6

    Language：English   Presentation type：Poster presentation  

    Venue：韓国  

  • Akinori TAKEUCHI, Hitoshi KODAMATANI, Takashi TOMIYASU, Yuriko KONO, Masahiro YAMAMOTO, Katsumi MARUMO   EXTREMELY LOW RATIO OF MMHG TO TOTAL MERCURY IN SUBMARINE HYDROTHERMAL MUSSELS (BATHYMODIOLUS JAPONICUS)   International conference

    12th International Conference on Mercury as a Global Pollutant 

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    Event date： 2015.6

    Language：English   Presentation type：Oral presentation (general)  

    Venue：韓国  

  • Akito Matsuyama, Takashi Tomiyasu   Outline of dredging project of Minamata Bay and, current state of Minamata Bay   Invited International conference

    12th International Conference on Mercury as a Global Pollutant 

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    Event date： 2015.6

    Language：English   Presentation type：Oral presentation (invited, special)  

    Venue：韓国  

  • Hitoshi Kodamatani, Chihiro Maeda, Steven J. Balogh, Yabing H. Nollet, Ryo Kanzaki, Takashi Tomiyasu   The influence of sample drying and storage conditions on methylmercury determination in soils and sediments   International conference

    12th International Conference on Mercury as a Global Pollutant 

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    Event date： 2015.6

    Language：English   Presentation type：Poster presentation  

    Venue：韓国  

  • Takashi Tomiyasu, Hitoshi Kodamatani, Akito Matsuyama, Ryusuke Imura, Hirokatsu Akagi, David Kocman, Jo?e Kotnik, Vesna Fajon, Milena Horvat   Distribution of total, methyl, and ethyl mercury concentrations in soils near Idrija mercury mine, Slovenia   International conference

    12th International Conference on Mercury as a Global Pollutant 

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    Event date： 2015.6

    Language：English   Presentation type：Poster presentation  

    Venue：韓国  

  • Yuriko Kono, Joeni Setijo Rahajoe, Nuril Hidayati and Takashi Tomiyasu   Distribution of mercury in river water around artisanal and small-scale gold mining areas in West Java, Indonesia   International conference

    12th International Conference on Mercury as a Global Pollutant 

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    Event date： 2015.6

    Language：English   Presentation type：Poster presentation  

    Venue：韓国  

  • 簗瀬 梓・ 児玉谷 仁・ 神崎 亮・ 本村 浩之・ 冨安 卓滋   鹿児島湾における魚体中水銀濃度  

    日本分析化学会第75回分析化学討論会 

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    Event date： 2015.5

    Language：Japanese   Presentation type：Poster presentation  

  • 河野 百合子 ・ Joeni S. Rahajoe ・ Nuril Hidayati ・ 冨安 卓滋   小規模金採掘活動によって排出される大気中水銀濃度の経時変化と化学形態別分析  

    日本分析化学会第75回分析化学討論会  日本分析化学会

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    Event date： 2015.5

    Language：Japanese   Presentation type：Poster presentation  

    Venue：山梨大学  

  • Christine Baransano ・ 河野 百合子 ・ 児玉谷 仁・ 神崎 亮 ・ Joeni S. Rahajoe・ Nuril Hidayati・ 冨安 卓滋   インドネシア西ジャワ州チカニキ川周辺土壌中の水銀濃度分布に及ぼす金精錬活動の影響   International conference

    日本分析化学会第75回分析化学討論会  日本分析化学会

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    Event date： 2015.5

    Language：Japanese   Presentation type：Poster presentation  

    Venue：山梨大学  

  • 重冨 あずさ ・ 児玉谷 仁・ 外薗 寿宗・ 勝間 創太・ 山崎 仁美・ 神崎 亮・ 冨安 卓滋   旧水銀鉱山周辺における水銀分布とその化学形態   International conference

    日本分析化学会第75回分析化学討論会  日本分析化学会

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    Event date： 2015.5

    Language：Japanese   Presentation type：Poster presentation  

    Venue：山梨大学  

  • 冨安卓滋、尾畑勝義、児玉谷仁、河野百合子、神崎亮、山本正浩、武内章記、丸茂克美   海底熱水系周辺における底質及び生体試料中水銀濃度  

    2014年度 日本地球化学会年会  2014年度 日本地球化学会年会

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    Event date： 2014.9

    Language：Japanese  

    Venue：富山  

    国内学会

  • Yuriko Kono, Joeni S. Rahajoe, Nuril Hidayati, Takashi Tomiyasu   Speciation and distribution of atmospheric mercury in artisanal and small-scale gold mining areas in West Java, Indonesia   International conference

    The 17th International Conference on Heavy Metals in the Environment  The 17th International Conference on Heavy Metals in the Environment

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    Event date： 2014.9

    Language：English  

    Venue：中国  

    国際学会

  • Takashi Tomiyasu, Minato Takuya, Gamboa Ruiz Wilder Leonardo, Hitoshi Kodamatani, Yuriko Kono, Masayasu Hidaka, Kimihiko Oki, Ryo Kanzaki, Yoko Taniguchi, Akito Matsuyama   Distribution of mercury species in water of Kagoshima Bay, Japan, in relation with submarine fumaroles   International conference

    The 17th International Conference on Heavy Metals in the Environment  The 17th International Conference on Heavy Metals in the Environment

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    Event date： 2014.9

    Language：English  

    Venue：中国  

    国際学会

  • Wilder Leonardo Gamboa Ruiz, Takashi Tomiyasu, Hitoshi Kodamatani, Yuriko Kono, Ryo Kanzaki, Kimihiko Oki, Masayasu Hidaka   Spatial Distribution of Hg Emitted from Hydrothermal Vents in Bottom Sediments from Kagoshima Bay and its Relationship with Physicochemical Factors   International conference

    The 17th International Conference on Heavy Metals in the Environment  The 17th International Conference on Heavy Metals in the Environment

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    Event date： 2014.9

    Language：English  

    Venue：中国  

    国際学会

  • 外薗 寿宗・児玉谷 仁・神﨑 亮・井村 隆介・冨安 卓滋   鹿児島県旧金鉱山周辺土壌中水銀濃度分布  

    日本分析化学会 第74回分析化学討論会  日本分析化学会 第74回分析化学討論会

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    Event date： 2014.5

    Language：Japanese  

    Venue：福島  

    国内学会

  • Takashi Tomiyasu, Takuya Minato, Hitoshi Kodamatani, Yuriko Kono, Masayasu Hidaka, Kimihiko Oki, Yoko Taniguchi, Akito Matsuyama   The influence of submarine fumaroles on the seasonal changes ofmercury species in water of Kagoshima Bay, Japan   International conference

    the 11th International Conference on Mercury as a Global Pollutant  the 11th International Conference on Mercury as a Global Pollutant

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    Event date： 2013.7

    Language：English  

    Venue：イギリス  

    国際学会

  • Yuriko Kono, Joeni S. Rahajoe, Nuril Hidayati, Hitoshi Kodamatani, Takashi Tomiyasu   Distribution of dissolved mercury in river water around artisanal and small-scale gold mining areas in West Java, Indonesia   International conference

    the 11th International Conference on Mercury as a Global Pollutant  the 11th International Conference on Mercury as a Global Pollutant

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    Event date： 2013.7

    Language：English  

    Venue：イギリス  

    国際学会

  • Hitoshi Kodamatani, Akito Matsuyama, Steven Balogh, Vesna Fajon, Milena Horvat, Takashi Tomiyasu   Inter-laboratory comparative study of monomethylmercury and monoethylmercury determination in various soil/sediment samples by different analytical methods   International conference

    the 11th International Conference on Mercury as a Global Pollutant  the 11th International Conference on Mercury as a Global Pollutant

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    Event date： 2013.7

    Language：English  

    Venue：イギリス  

    国際学会

  • Yuriko Kono, Joeni S Rahajoe, Nuril Hidayati, Ryo Kanzaki, Hitoshi Kodamatani, Takashi Tomiyasu   On-site measurements of atmospheric mercury around a small-scale gold mining area along the Cikaniki River, Indonesia   International conference

    SETAC Asia Pacific 2012  SETAC Asia Pacific 2012

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    Event date： 2012.9

    Language：English  

    Venue：熊本  

    国際学会

  • 伊藤慎也、坂口建、児玉谷仁、山崎重雄、冨安卓滋、齋藤惠逸   HPLCー化学発光検出法による水道水中N-ニトロソアミン類の分析  

    日本分析化学会第61年会  日本分析化学会第61年会

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    Event date： 2012.9

    Language：Japanese  

    Venue：石川県  

    国内学会

  • 河野百合子、Rahajoe Joeni S.、児玉谷仁、神崎亮、冨安卓滋   インドネシア共和国グヌン・ハリムンーサラク国立公園における大気中水銀濃度変動  

    日本分析化学会第61年会  日本分析化学会第61年会

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    Event date： 2012.9

    Language：Japanese  

    Venue：石川  

    国内学会

  • 湊拓也、児玉谷仁、神崎亮、河野百合子、日高正康、大木公彦、冨安卓滋   鹿児島湾における海水中水銀濃度の季節変動と海底噴気熱水活動の影響  

    日本分析化学会第61年会  日本分析化学会第61年会

    　More details

    Event date： 2012.9

    Language：Japanese  

    Venue：石川  

    国内学会

  • Ganboa Ruiz Wilder Leonardo、児玉谷仁、神崎亮、河野百合子、日高正康、大木公彦、冨安卓滋   Total Mercury Distribution in Sediments of Kagoshima Bay: Influence of Submarine Fumaroles  

    日本分析化学会第61年会  日本分析化学会第61年会

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    Event date： 2012.9

    Language：Japanese  

    Venue：石川  

    国内学会

  • 岩元健二、松本忠夫、冨安卓滋   肝属川支流串良川の窒素汚染と生物の比較研究  

    日本分析化学会第72回分析化学討論会  日本分析化学会第72回分析化学討論会

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    Event date： 2012.5

    Language：Japanese  

    Venue：鹿児島  

    国内学会

  • 御手洗麻衣、梅田亨、児玉谷仁、神崎亮、河野百合子、日高正康、大木公彦、冨安卓滋   イオンクロマトグラフィーを用いた鹿児島湾北部における熱水活動の影響評価  

    日本分析化学会第72回分析化学討論会  日本分析化学会第72回分析化学討論会

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    Event date： 2012.5

    Language：Japanese  

    Venue：鹿児島  

    国内学会

  • 湊拓也、児玉谷仁、神崎亮、河野百合子、日高正康、大木公彦、冨安卓滋   鹿児島湾奥部海水中の化学形別水銀の季節変動と海底噴気活動の影響  

    日本分析化学会第72回分析化学討論会  日本分析化学会第72回分析化学討論会

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    Event date： 2012.5

    Language：Japanese  

    Venue：鹿児島  

    国内学会

  • 尾畑勝義、児玉谷仁、神崎亮、冨安卓滋   還元気化ー冷原子吸光光度法による底質および土壌試料中有機水銀定量のための試料前処理法の検討  

    日本分析化学会第72回分析化学討論会  日本分析化学会第72回分析化学討論会

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    Event date： 2012.5

    Language：Japanese  

    Venue：鹿児島  

    国内学会

  • 伊藤慎也、児玉谷仁、山崎重雄、冨安卓滋、斉藤惠逸   固相抽出とHPLCー化学発光検出法を組み合わせたN-ニトロソアミン類の高感度分析  

    日本分析化学会第72回分析化学討論会  日本分析化学会第72回分析化学討論会

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    Event date： 2012.5

    Language：Japanese  

    Venue：鹿児島  

    国内学会

  • 児玉谷仁、松山明人、斉藤惠逸、河野百合子、神崎亮、冨安卓滋   土壌・底質中の有機水銀分析法の開発と水銀汚染地域におけるその存在濃度  

    日本分析化学会第72回分析化学討論会  日本分析化学会第72回分析化学討論会

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    Event date： 2012.5

    Language：Japanese  

    Venue：鹿児島  

    国内学会

  • 神崎亮、草村裕子、冨安卓滋、児玉谷仁、梅林泰宏、宋雪旦   プロトン性イオン液体硝酸エチルアンモニウム(EAN)中における酸・塩基の反応性  

    日本分析化学会第72回分析化学討論会  日本分析化学会第72回分析化学討論会

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    Event date： 2012.5

    Language：Japanese  

    Venue：鹿児島  

    国内学会

  • 河野百合子、Rahajoe Joeni S.、Hidayati Nuril、児玉谷仁、神崎亮、冨安卓滋   インドネシア共和国チカニキ川流域の金精錬活動による大気中水銀汚染の評価  

    日本分析化学会第72回分析化学討論会  日本分析化学会第72回分析化学討論会

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    Event date： 2012.5

    Language：Japanese  

    Venue：鹿児島  

    国内学会

  • 冨安卓滋、児玉谷仁、河野百合子、丸茂克美、山本正浩、小室光世、中川聡、NT11-19乗船研究者一同   伊平屋北海丘海底熱水系周辺における環境試料中水銀濃度分布  

    ブルーアース2012  ブルーアース2012

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    Event date： 2012.2

    Language：Japanese  

    Venue：東京  

    国内学会

  • 丸茂克美、山本正浩、冨安卓滋、児玉谷仁、河野百合子、小室光世、武内章記、中川聡、NT11-19乗船研究者一同   伊平屋北海丘の海底熱水系の水銀濃度と同位体組成  

    ブルーアース2012  ブルーアース2012

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    Event date： 2012.2

    Language：Japanese  

    Venue：東京  

    国内学会

  • 河野百合子、児玉谷仁、神崎亮、冨安卓滋   鹿児島市における大気中水銀濃度変動  

    日本分析化学会第60年会  日本分析化学会第60年会

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    Event date： 2011.9

    Language：Japanese  

    Venue：愛知  

    国内学会

  • 冨安卓滋、河野百合子、児玉谷仁、神崎亮、Hidayati Nuril、Setijo Rahajoe Joeni   インドネシア、ジャワ島西部小規模金採掘地域における土壌中総水銀濃度分布と土壌化学成分  

    日本分析化学会第60年会  日本分析化学会第60年会

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    Event date： 2011.9

    Language：Japanese  

    Venue：愛知  

    国内学会

  • 児玉谷仁、松山明人、河野百合子、齋藤惠逸、神崎亮、冨安卓滋   ルテニウム錯体化学発光検出法を利用した水銀化合物の形態別分析法の開発 (4)  

    日本分析化学会第60年会  日本分析化学会第60年会

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    Event date： 2011.9

    Language：Japanese  

    Venue：愛知  

    国内学会

  • TOMIYASU Takashi , MATSUOKA Hiroyuki , KODAMATANI Hitoshi , KONO Yuriko , MATSUYAMA Akito , HIDAKA Masayasu , OKI Kimihiko   INFLUENCE OF SUBMARINE FUMAROLES ON THE DISTRIBUTION OF MERCURY IN WATER AND SEDIMENT OF KAGOSHIMA BAY, JAPAN   International conference

    10th International Conference on Mercury as a Global Pollutant  10th International Conference on Mercury as a Global Pollutant

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    Event date： 2011.7

    Language：English  

    Venue：カナダ  

    国際学会

  • KODAMATANI Hitoshi , MATSUYAMA Akito , KONO Yuriko, KANZAKI Ryo , SAITO Keiitsu , TOMIYASU Takashi   SIMPLE AND SENSITIVE METHOD FOR DETERMINATION OF METHYLMERCURY IN ENVIRONMENTAL SAMPLES BY HIGH-PERFORMANCE LIQUID CHROMATOGRAPHY WITH CHEMILUMINESCENCE DETECTION   International conference

    10th International Conference on Mercury as a Global Pollutant  10th International Conference on Mercury as a Global Pollutant

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    Event date： 2011.7

    Language：English  

    Venue：カナダ  

    国際学会

  • KEENAN Helen , BANGKEDPHOL Sornnarin , ALO Babajide , DAVIDSON Christine.M , GUIMERAES Jean , HORVAT Milena ,HURLEY James , LEANER Joy , MASON Robert , SONGSASEN Apisit , TOMIYASU Takashi , VASILEVA-VELEVA Emelia, BOOTH Peter.H.   INTRODUCTION AND OVERVIEW OF GESAMP ASSESSMENT ON MERCURY IN THE MARINE ENVIRONMENT   International conference

    10th International Conference on Mercury as a Global Pollutant  10th International Conference on Mercury as a Global Pollutant

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    Event date： 2011.7

    Language：English  

    Venue：カナダ  

    国際学会

  • Yuriko Kono, Nuril Hidayati, Joeni S Rahajoe, Hitoshi Kodamatani, Ryo Kanzaki, Takashi Tomiyasu   Estimation of atmospheric mercury levels with native epiphytic ferns in small-scale gold mining area, West Java, Indonesia   International conference

    10th International Conference on Mercury as a Global Pollutant  10th International Conference on Mercury as a Global Pollutant

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    Event date： 2011.7

    Language：English  

    Venue：カナダ  

    国際学会

  • Takashi Tomiyasu, Yuriko Kono, Hitoshi Kodamatani, Nuril Hidayati, Joeni Setijo Rahajoe   The distribution of mercury around a small scale gold mining area in Indonesia  

    Internationl Workshop on Mercury in contaminated sites: Characterization, impacts and remediation  Internationl Workshop on Mercury in contaminated sites: Characterization, impacts and remediation

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    Event date： 2010.10

    Language：Japanese  

    Venue：Slovenia  

    研究会

  • 古城真生, 児玉谷仁, 神崎亮, 冨安卓滋   N,N-ジメチルアニリンと3-メチル-2-ベンゾチアゾリノンヒドラゾンの酸化カップリング反応に対する銅(II)イオン触媒の反応速度論的検討  

    日本分析化学会第59年会  日本分析化学会第59年会

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    Event date： 2010.9

    Language：Japanese  

    Venue：宮城  

    国内学会

  • 前畑健太, 児玉谷仁, 神崎亮, 冨安卓滋   メチルオレンジ‐臭素酸カリウム反応系に対する触媒作用を利用した微量鉄(II)イオン定量法の開発とその速度論的検討  

    日本分析化学会第59年会  日本分析化学会第59年会

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    Event date： 2010.9

    Language：Japanese  

    Venue：宮城  

    国内学会

  • 河野百合子, Rahajoe Joeni Setijo, 児玉谷仁, 神崎亮, 冨安卓滋   インドネシアの小規模金採掘集落内および天然林内における大気中水銀濃度の経時変化  

    日本分析化学会第59年会  日本分析化学会第59年会

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    Event date： 2010.9

    Language：Japanese  

    Venue：宮城  

    国内学会

  • 児玉谷仁, 齊藤惠逸, 神崎亮, 冨安卓滋   ルテニウム錯体化学発光検出法を利用した水銀化合物の形態別分析法の開発(3)  

    日本分析化学会第59年会  日本分析化学会第59年会

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    Event date： 2010.9

    Language：Japanese  

    Venue：宮城  

    国内学会

  • 松岡博之, 山本温彦, 児玉谷仁, 穴澤活郎, 冨安卓滋   四国美郷キースラーガー鉱床地域における高硫酸水の形成過程  

    日本分析化学会第59年会  日本分析化学会第59年会

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    Event date： 2010.9

    Language：Japanese  

    Venue：宮城  

    国内学会

  • 児玉谷仁, 齊藤惠逸, 神崎亮, 冨安卓滋   ルテニウム錯体化学発光検出法を利用した水銀化合物の形態別分析法の開発(2)  

    第71回分析化学討論会  第71回分析化学討論会

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    Event date： 2010.5

    Language：Japanese  

    Venue：島根  

    国内学会

  • 冨安卓滋, 河野百合子, 児玉谷仁, 神崎亮, Hidayati Nuril, SetijoRahajoe Joeni   インドネシア、ジャワ島西部チカニキ川上流域における土壌及び河川底質中水銀濃度分布  

    第71回分析化学討論会  第71回分析化学討論会

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    Event date： 2010.5

    Language：Japanese  

    Venue：島根  

    国内学会

  • 河野百合子, SetijoRahajioe, Joeni Hidayati Nuril, 児玉谷仁, 神崎亮, 冨安卓滋   インドネシアジャワ島西部の小規模金採掘地域におけるシマオオタニワタリを用いた大気中水銀のバイオモニタリング  

    第71回分析化学討論会  第71回分析化学討論会

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    Event date： 2010.5

    Language：Japanese  

    Venue：島根  

    国内学会

  • Yuriko Kono, Joeni Setijo Rahajoe, Takashi Tomiyasu   Mercury concentration in air and epiphytic ferns in the upper Cikaniki River, West Java, Indonesia  

    Joint Work Shop JSPS International Training Program and Ecological Society of Indonesia: To Protect Diversity of Bioresouces in the Tropical Area  Joint Work Shop JSPS International Training Program and Ecological Society of Indonesia: To Protect Diversity of Bioresouces in the Tropical Area

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    Event date： 2009.11

    Language：Japanese  

    Venue：Indonesia  

    研究会

  • Takashi Tomiyasu, Yuriko Kono, Nuril Hidayati, Joeni Setijo Rahajoe   Mercury biogeochemistry in environment and impact at local scale  

    Joint Work Shop JSPS International Training Program and Ecological Society of Indonesia: To Protect Diversity of Bioresouces in the Tropical Area  Joint Work Shop JSPS International Training Program and Ecological Society of Indonesia: To Protect Diversity of Bioresouces in the Tropical Area

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    Event date： 2009.11

    Language：Japanese  

    Venue：Indonesia  

    研究会

  • 河野百合子, 児玉谷仁, 冨安卓滋   Estimate of atmospheric mercury levels with epiphytic fern Lepisorus thunbergianus (Polypodiaceae)  

    日本分析化学会第58年会  日本分析化学会第58年会

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    Event date： 2009.9

    Language：Japanese  

    Venue：北海道  

    国内学会

  • 児玉谷仁, 神崎亮, 齊藤惠逸, 冨安卓滋   ルテニウム錯体化学発光検出法を利用した水銀化合物の形態別分析法の開発  

    日本分析化学会第58年会  日本分析化学会第58年会

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    Event date： 2009.9

    Language：Japanese  

    Venue：北海道  

    国内学会

  • 古城真生, 児玉谷仁, 冨安卓滋   N,N-ジメチルアニリンと3-メチル-2-ベンゾチアゾリノンヒドラゾンの酸化カップリング反応に対する触媒作用を利用した微量銅イオンの吸光光度定量法  

    日本分析化学会第58年会  日本分析化学会第58年会

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    Event date： 2009.9

    Language：Japanese  

    Venue：北海道  

    国内学会

  • Takashi Tomiyasu, Akito Matsuyama, Ryusuke Imura, Hitoshi Kodamatani, Junko Miyamoto, Milena Horvat, David Kocman, Joze Kotnik, Vesna Fajon, Suzana Zizek   Horizontal and vertical distribution of total and methylmercury concentrations in soils near Idrija mercury mine Slovenia   International conference

    9th International Conference on Mercury as a Global Pollutant  9th International Conference on Mercury as a Global Pollutant

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    Event date： 2009.6

    Language：English  

    Venue：中国  

    国際学会

  • 廣瀬公人, 児玉谷仁, 志賀美英, 冨安卓滋   中国雲南省个旧市の錫鉱山周辺土壌における総ヒ素濃度分布  

    第70回分析化学討論会  第70回分析化学討論会

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    Event date： 2009.5

    Language：Japanese  

    Venue：和歌山  

    国内学会

  • 児玉谷仁, 竹中信也, 松山明人, 丸本幸治, 赤木洋勝, 大木公彦, 冨安卓滋   水俣湾底質中における総水銀濃度分布と人為的に排出された水銀残留量  

    第70回分析化学討論会  第70回分析化学討論会

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    Event date： 2009.5

    Language：Japanese  

    Venue：和歌山  

    国内学会

  • 冨安卓滋, 金本悠, 福永康恵, 児玉谷仁, 井村隆介   鹿児島県霧島市安楽温泉より流出する温泉水中のヒ素の挙動  

    第70回分析化学討論会  第70回分析化学討論会

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    Event date： 2009.5

    Language：Japanese  

    Venue：和歌山  

    国内学会

  • 河野百合子, Setijo Rahajoe Joeni, 児玉谷仁, 冨安卓滋   インドネシア西ジャワ州ボゴールにおける小規模金採掘活動に伴う大気中水銀の拡散-着生シダ植物中の水銀濃度による評価-  

    第70回分析化学討論会  第70回分析化学討論会

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    Event date： 2009.5

    Language：Japanese  

    Venue：和歌山  

    国内学会

  • 穴澤活郎, 冨安卓滋, 児玉谷仁   火山地域における天然陸水の水質形成機構  

    日本化学会西日本大会  日本化学会西日本大会

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    Event date： 2008.11

    Language：Japanese  

    Venue：長崎  

    国内学会

  • 児玉谷仁、山崎重雄、齊藤惠逸、小松優、穴澤活郎、冨安卓滋   オンライン紫外線照射-ルミノール-化学発光検出法による亜硝酸・硝酸イオン分析法の開発（2）  

    日本分析化学会第57年会  日本分析化学会第57年会

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    Event date： 2008.9

    Language：Japanese  

    Venue：福岡  

    国内学会

  • 河野百合子、Setijo Rahajoe Joeni、Hidayati Nuril、児玉谷仁、穴澤活郎、冨安卓滋   インドネシア西ジャワ州ボゴールの小規模金採掘集落周辺大気および着生シダ植物中の水銀濃度分布  

    日本分析化学会第57年会  日本分析化学会第57年会

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    Event date： 2008.9

    Language：Japanese  

    Venue：福岡  

    国内学会

  • 勢田一史、児玉谷仁、穴澤活郎、冨安卓滋   フローインジェクション分析法によるメチルオレンジと臭素酸カリウムとの反応を利用した微量臭化物イオンの接触分析法  

    日本分析化学会第57年会  日本分析化学会第57年会

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    Event date： 2008.9

    Language：Japanese  

    Venue：福岡  

    国内学会

  • 小原智文, 冨安卓滋, 井村隆介, 穴澤活郎   鹿児島県天降川上流部：旧山ヶ野金山周辺土壌中の水銀濃度分布  

    第54回日本地球化学会年会  第54回日本地球化学会年会

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    Event date： 2007.9

    Language：Japanese  

    Venue：岡山  

    国内学会

  • 市耒聖一, 冨安卓滋, 穴澤活郎   鹿児島県旧大口金山跡地周辺における河川水中の水銀分布  

    第54回日本地球化学会年会  第54回日本地球化学会年会

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    Event date： 2007.9

    Language：Japanese  

    Venue：岡山  

    国内学会

  • T. Tomiyasu, A. Matsuyama, R. Imura, M. Horvat, J. Kotnik, D. Kocman   Distribution of mercury in soils near Idrija mercury mine, Slovenia   International conference

    17th Annual V. M. Goldschmidt Conference  17th Annual V. M. Goldschmidt Conference

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    Event date： 2007.8

    Language：English  

    Venue：ドイツ  

    国際学会

  • H. Akagi, J. Ikingura, A. Matsuyama, T. Tomiyasu, M. Horvat   Analytical approches for evaluation of mercury tranceformation and partitioning in aquatic systems   International conference

    8th International Conference on Mercury as a Gloval Pollutant  8th International Conference on Mercury as a Gloval Pollutant

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    Event date： 2006.8

    Language：English  

    Venue：アメリカ合衆国  

    国際学会

  • T. Tomiyasu, A. Matsuyama, R. Imura, J. Miyamoto, M. Horvat, J. Kotnik, V. Fajon, D. Gibicar and H. Akagi   Distribution of mercury in river water and sediment near Idrija mercury mine, Slovenia   International conference

    8th International Conference on Mercury as a Gloval Pollutant  8th International Conference on Mercury as a Gloval Pollutant

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    Event date： 2006.8

    Language：English  

    Venue：アメリカ合衆国  

    国際学会

  • T. Tomiyasu, A. Matsuyama, T. Eguchi, K. Marumoto, K. Oki, H. Akagi   Speciation of mercury in bottom water in Minamata Bay   International conference

    8th International Conference on Mercury as a Gloval Pollutant  8th International Conference on Mercury as a Gloval Pollutant

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    Event date： 2006.8

    Language：English  

    Venue：アメリカ合衆国  

    国際学会

  • 冨安卓滋、森達哉、穴澤活郎、坂元隼雄   2,2’-ビピリジル共存下における鉄(III)-スズ(II)酸化還元反応に対する触媒作用を利用した微量セレン(IV)の吸光光度定量法  

    第67回分析化学討論会  第67回分析化学討論会

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    Event date： 2006.6

    Language：Japanese  

    Venue：秋田  

    国内学会

  • 河野百合子、冨安卓滋、穴澤活郎、坂元隼雄、宮本旬子   着生シダ類ノキシノブ属(Lepisorus)を用いた大気中水銀モニタリングに関する基礎検討  

    第67回分析化学討論会  第67回分析化学討論会

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    Event date： 2006.6

    Language：Japanese  

    Venue：秋田  

    国内学会

  • 松尾知則, 冨安卓滋, 宮本旬子, 井村隆介, 穴澤活郎, 坂元隼雄   大気中水銀指標植物としてのセイタカアワダチソウの有用性に関する基礎検討  

    第66回分析化学討論会  第66回分析化学討論会

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    Event date： 2005.5

    Language：Japanese  

    Venue：北海道  

    国内学会

  • 木下協子, 冨安卓滋, 穴澤活郎, 坂元隼雄   メチルオレンジ-臭素酸カリウム反応系に対する臭化物イオン触媒の反応速度論的検討  

    第66回分析化学討論会  第66回分析化学討論会

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    Event date： 2005.5

    Language：Japanese  

    Venue：北海道  

    国内学会

  • 冨安卓滋, 松山明人, 江口朋美, 大木公彦, 赤木洋勝   水俣湾底質直上水の水銀含有量と底質からの水銀の移動  

    第66回分析化学討論会  第66回分析化学討論会

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    Event date： 2005.5

    Language：Japanese  

    Venue：北海道  

    国内学会

  • 飯盛哲生, 坂元隼雄, 冨安卓滋, 穴澤活郎   シラスによる亜鉛および銅の吸着について  

    第51回日本地球化学会年会  第51回日本地球化学会年会

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    Event date： 2004.9

    Language：Japanese  

    Venue：静岡  

    国内学会

  • 小堀晃作, 坂元隼雄, 冨安卓滋, 穴澤活郎   鹿児島県・八幡地獄の噴気孔周辺における植物の葉, 土壌及び大気中の水銀分布  

    第51回日本地球化学会年会  第51回日本地球化学会年会

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    Event date： 2004.9

    Language：Japanese  

    Venue：静岡  

    国内学会

  • K. Anazawa, H. Ohmori, H. Sakamoto, T. Tomiyasu   Chemical process of surface water in a typical andesitic volcanic area, Norikura volcano, central Japan   International conference

    Western Pacific Geophysical Meeting  Western Pacific Geophysical Meeting

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    Event date： 2004.8

    Language：English  

    Venue：アメリカ合衆国  

    国際学会

  • A. Tada, S. Yano, H. Oshikawa, T. Nakamura, H. Akagi, A. Matsuyama, T. Tomiyasu, R. Rajar, M. Horvat   Improvement of in situ measurement of mercury transport in the Minamata Bay   International conference

    7th International Conference on Mercury as a Global Pollutant  7th International Conference on Mercury as a Global Pollutant

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    Event date： 2004.7

    Language：English  

    Venue：Slovenia  

    国際学会

  • S. YANO, A. Tada, H. Oshikawa, T. Nakamura, H. Akagi, A. Matsuyama, T. Tomiyasu, R. Rajar, M. Horvat   . The first trial of in situ measurement of mercury transport by using an oceanographic method in the Minamata Bay   International conference

    7th International Conference on Mercury as a Global Pollutant  7th International Conference on Mercury as a Global Pollutant

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    Event date： 2004.7

    Language：English  

    Venue：Slovenia  

    国際学会

  • M. Horvat, M.Logar, N. Ogrinc, V. Fajon, S. Lojen, H. Akagi, T. Ando, T. Tomiyasu, A. Matsuyama   The effect of sampling and sample pretreatment on MeHg concentration in coastal marine sediments   International conference

    7th International Conference on Mercury as a Global Pollutant  7th International Conference on Mercury as a Global Pollutant

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    Event date： 2004.7

    Language：English  

    Venue：Slovenia  

    国際学会

  • T. Tomiyasu, A. Matsuyama, T. Eguchi, Y. Fuchigami, K. Oki, M. Horvat, R. Rajar, H. Akagi   Spatial variation of mercury in the sediments of Minamata Bay, ten years later from Minamata Bay Pollution Prevention Project   International conference

    7th International Conference on Mercury as a Global Pollutant  7th International Conference on Mercury as a Global Pollutant

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    Event date： 2004.7

    Language：English  

    Venue：Slovenia  

    国際学会

  • 小堀晃作, 坂元隼雄, 冨安卓滋, 穴澤活郎   噴気地域における植物及び土壌中の総水銀含有量  

    第65回分析化学討論会  第65回分析化学討論会

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    Event date： 2004.5

    Language：Japanese  

    Venue：沖縄  

    国内学会

  • 冨安卓滋, 松尾知則, 宮本旬子, 井村隆介, 穴澤活郎, 坂元隼雄   周辺環境からの植物による水銀の取り込み (2) - キク科植物による水銀の取り込みとその体内分布 -  

    第65回分析化学討論会  第65回分析化学討論会

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    Event date： 2004.5

    Language：Japanese  

    Venue：沖縄  

    国内学会

  • 冨安卓滋, 江口真之, 岡田守道, 穴澤活郎, 坂元隼雄   鹿児島市大気中水銀の形態別定量とその季節変動  

    第65回分析化学討論会  第65回分析化学討論会

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    Event date： 2004.5

    Language：Japanese  

    Venue：沖縄  

    国内学会

  • T. Tomiyasu, M. Horvat, M. Logar, J. Kotnik, R. Rajar, T. Eguchi and H. Akagi   Speciation of mercury in river water near Idrija mercury mine, Slovenia   International conference

    13th Annual V. M. Goldschmidt Conference  13th Annual V. M. Goldschmidt Conference

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    Event date： 2003.9

    Language：English  

    Venue：Japan  

    国際学会

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Research Projects

  • 鹿児島湾海底火山活動によって放出される水銀及びセレンの環境動態

    2019.4 - 2022.3

    科学研究費補助金  基盤研究(A)

  • 汚染地域における水銀の環境動態と生態系への影響

    2013.4 - 2016.3

    科学研究費補助金  基盤研究(A)

  • 汚染地域における水銀動態とその環境影響

    2010.4 - 2013.3

    科学研究費補助金  基盤研究(B)

  • イドリヤ旧水銀鉱山（スロベニア共和国）周辺地域における水銀の動態とその環境影響

    2006.4 - 2009.3

    科学研究費補助金  基盤研究(B)

  • 人為的活動により環境中に放出された水銀の挙動とその周辺環境への影響評価

    2003.4 - 2006.3

    科学研究費補助金  基盤研究(B)

  • 桜島火山の活動により放出された水銀の環境影響

    2001.4 - 2003.3

    科学研究費補助金  基盤研究(C)

  • 桜島火山の活動により放出された水銀の環境動態に関する研究

    1997.4 - 1999.3

    科学研究費補助金  基盤研究(C)

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