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Kohei Sakata
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Spherical tarball particles form through rapid chemical and physical changes of organic matter in biomass-burning smoke
K Adachi, AJ Sedlacek III, L Kleinman, SR Springston, J Wang, D Chand, ...
Proceedings of the National Academy of Sciences 116 (39), 19336-19341, 2019
962019
Identification of sources of lead in the atmosphere by chemical speciation using X-ray absorption near-edge structure (XANES) spectroscopy
K Sakata, A Sakaguchi, M Tanimizu, Y Takaku, Y Yokoyama, Y Takahashi
Journal of Environmental Sciences 26 (2), 343-352, 2014
412014
Variation of iron isotope ratios in anthropogenic materials emitted through combustion processes
M Kurisu, K Sakata, C Miyamoto, Y Takaku, T Iizuka, Y Takahashi
Chemistry Letters 45 (8), 970-972, 2016
372016
Contribution of combustion Fe in marine aerosols over the northwestern Pacific estimated by Fe stable isotope ratios
M Kurisu, K Sakata, M Uematsu, A Ito, Y Takahashi
Atmospheric Chemistry and Physics 21 (20), 16027-16050, 2021
362021
Stable isotope ratios of combustion iron produced by evaporation in a steel plant
M Kurisu, K Adachi, K Sakata, Y Takahashi
ACS Earth and Space Chemistry 3 (4), 588-598, 2019
352019
Vertical distribution of 236U in the North Pacific Ocean
R Eigl, P Steier, K Sakata, A Sakaguchi
Journal of environmental radioactivity 169, 70-78, 2017
332017
First study on 236U in the Northeast Pacific Ocean using a new target preparation procedure for AMS measurements
R Eigl, P Steier, SR Winkler, K Sakata, A Sakaguchi
Journal of environmental radioactivity 162, 244-250, 2016
312016
Custom-made PTFE filters for ultra-clean size-fractionated aerosol sampling for trace metals
K Sakata, M Kurisu, H Tanimoto, A Sakaguchi, M Uematsu, C Miyamoto, ...
Marine Chemistry 206, 100-108, 2018
222018
Lead speciation studies on coarse and fine aerosol particles by bulk and micro X-ray absorption fine structure spectroscopy
K Sakata, A Sakaguchi, Y Yokoyama, Y Terada, Y Takahashi
Geochemical Journal 51 (3), 215-225, 2017
172017
Broadband high-energy resolution hard x-ray spectroscopy using transition edge sensors at SPring-8
S Yamada, Y Ichinohe, H Tatsuno, R Hayakawa, H Suda, T Ohashi, ...
Review of Scientific Instruments 92 (1), 2021
152021
Iron (Fe) speciation in size-fractionated aerosol particles in the Pacific Ocean: The role of organic complexation of Fe with humic-like substances in controlling Fe solubility
K Sakata, M Kurisu, Y Takeichi, A Sakaguchi, H Tanimoto, Y Tamenori, ...
Atmospheric Chemistry and Physics 22 (14), 9461-9482, 2022
132022
Determination of calcium and sulfate species in aerosols associated with the conversion of its species through reaction processes in the atmosphere and its influence on cloud …
C Miyamoto, K Sakata, Y Yamakawa, Y Takahashi
Atmospheric Environment 223, 117193, 2020
112020
First X-ray spectroscopic observations of atmospheric titanium species: size dependence and the emission source
K Sakata, Y Takahashi, S Takano, A Matsuki, A Sakaguchi, H Tanimoto
Environmental Science & Technology 55 (16), 10975-10986, 2021
62021
Depth-dependent calcium speciation in individual aerosol particles by combination of fluorescence yield and conversion electron yield XAFS using X-ray microbeam
C Miyamoto, MA Marcus, K Sakata, M Kurisu, Y Takahashi
Chemistry Letters 45 (8), 934-936, 2016
42016
鉄含有エアロゾル粒子の排出源および化学的風化過程と鉄の溶解性の関係
坂田昂平, 栗栖美菜子, 高橋嘉夫
地球化学 57 (2), 108-126, 2023
22023
Measurement report: Stoichiometry of dissolved iron and aluminum as an indicator of the factors controlling the fractional solubility of aerosol iron: Results of the annual …
K Sakata, A Sakaguchi, Y Yamakawa, C Miyamoto, M Kurisu, ...
Atmospheric Chemistry and Physics Discussions 2023, 1-45, 2023
12023
Study on anthropogenic uranium isotope U-236 in the environment. Application for oceanic circulation tracer
A Sakaguchi, A Kadokura, K Sakata, Y Takahashi, P Steier, M Yamamoto, ...
Bunseki Kagaku (Japan Analyst) 62, 2013
12013
Source and fate of atmospheric iron supplied to the subarctic North Pacific traced by stable iron isotope ratios
M Kurisu, K Sakata, J Nishioka, H Obata, TM Conway, HR Hunt, M Sieber, ...
Geochimica et Cosmochimica Acta, 2024
2024
化学種解析に基づく都市・海洋エアロゾルに関する生物地球化学的研究
坂田昂平
地球化学 53 (1), 43-44, 2019
2019
Carbon Speciation in Sea Spray Aerosol by Scanning Transmission X-ray Microscope with Near-Edge X-ray Absorption Fine Structure (STXM/NEXAFS) Spectroscopy
K Sakata, Y Takeichi, Y Tamenori, H Suga, A Sakaguchi, Y Takahashi
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