Koarai Kazuma

コアライカズマ | Koarai Kazuma

Affiliation and department：

Research field (4)： Environmental effects of chemicals , Environmental effects of radiation , Analytical chemistry , Environmental dynamics

Research keywords (5)： ICP-MS , 硬組織 , ストロンチウム90 , 放射化学 , 環境放射能

Research theme for competitive and other funds (4)：

2022 - 2025 ICP-MSで読み解く耳石に刻まれた海水魚のSr-90取り込み履歴
2019 - 2024 Investigations of the effect of the world's highest level of natural radioactivity on reproductive activity of wild and domestic animals in Kerala, India
2018 - 2019 Agilent8800を用いた安定セシウム測定精度向上方法の検討
2016 - 2019 歯の放射能測定による福島第一事故被災動物の内部被ばく線量の評価

Papers (29)：

Koarai Kazuma, Matsueda Makoto, Aoki Jo, Terashima Motoki. Application of the Y separation method using DGA resin for the measurement of $^{90}$Sr in human teeth and marine fish bones. Proceedings of the 24th Workshop on Environmental Radioactivity. 2023. 155-160
Yusuke Watanabe, Motoki Terashima, Makoto Matsueda, Kazuma Koarai, Jo Aoki, Junya Inoue. Removal processes of dissolved elements in groundwater leached from waste by redox reaction. Goldschmidt2023 abstracts. 2023
Koarai Kazuma, Matsueda Makoto, Terashima Motoki. Development of an analytical method for $^{90}$Sr with ICP-MS/MS using O$_{2}$ and NH$_{3}$ mixed gas reaction. Proceedings of the 23th Workshop on Environmental Radioactivity. 2022. 102-107
Matsueda Makoto, Aoki Jo, Koarai Kazuma, Terashima Motoki, Takagai Yoshitaka*. Mass-spectrometric determination of iodine-129 using O$_{2}$-CO$_{2}$ mixed-gas reaction in inductively coupled plasma tandem quadrupole mass spectrometry. Analytical Sciences. 2022. 38. 11. 1371-1376
Toshitaka Oka, Atsushi Takahashi, Kazuma Koarai, Yasushi Kino, Tsutomu Sekine, Yoshinaka Shimizu, Mirei Chiba, Toshihiko Suzuki, Ken Osaka, Keiichi Sasaki, et al. Detection limit of electron spin resonance for Japanese deciduous tooth enamel and density separation method for enamel-dentine separation. Journal of Radiation Research. 2022

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MISC (55)：

Koarai Kazuma. Study on the uptake of $^{90}$Sr and $^{137}$Cs into wild animals after the Fukushima Daiichi Nuclear Power Plant accident using hard tissue as an indicator. Hosha Kagaku. 2023. 47. 24-27
光安優典, 岡壽崇, 高橋温, 小荒井一真, 木野康志, 奥津賢一, 関根勉, 山下琢磨, 清水良央, 千葉美麗, et al. Dose estimation for animals exposed low dose using their teeth. アイソトープ・放射線研究発表会(Web). 2021. 58th
小荒井一真, 松枝誠, 松枝誠, 青木譲, 青木譲, 藤原健壮, 寺島元基. Development of analysis method for ⁹⁰Sr in bones using Y separation with DGA resin. 日本放射化学会討論会(Web). 2021. 65th
青木譲, 松枝誠, 小荒井一真, 寺島元基, 藤原健壮, 阿部寛信. Development of solid-phase extraction technique for ICP-MS analysis of iodine-129 in environmental samples; Comparative study of anion-exchange and silver ion-supported resins on isolation of Iodine-129 from interference elements. 日本原子力研究開発機構JAEA-Research(Web). 2021. 2021-002
Takuya Ohdaira, Kanna Meguro, Kazuki Komatsu, Rina Syoji, Yohei Fujishima, Valerie Swee Ting Goh, Kosuke Kasai, Kentaro Ariyoshi, Akifumi Nakata, Yusuke Urushihara, et al. Analysis of Radioactive Elements in Testes of Large Japanese Field Mice Using an Electron Probe Micro-Analyser after the Fukushima Accident. Ionizing and Non-ionizing Radiation. 2020

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Books (1)：

Low-Dose Radiation Effects on Animals and Ecosystems
Springer 2019 ISBN:9789811382185

Lectures and oral presentations (62)：

BeCu material vacuum chamber with NEG coating
(10th International Symposium on Surface Science (ISSS-10))
Improvement of analysis performance of ICP-MS with desolvating nebulizer for detection of trace radionuclides
(日本放射化学会第68回討論会(2024))
Chemical state elucidation of trace nuclides in microparticles using scanning transmission X-ray microscopy
(8th International Forum on the Decommissioning of the Fukushima Daiichi Nuclear Power Station (1FD8))
Migration behavior of uranium from groundwater to the surface environment in uranium mine sites
(Goldschmidt Conference (Goldschmidt 2024))
None
(令和6年度環境創造センター成果報告会)

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Education (2)：

Work history (3)：

Awards (8)：

2022/09 - 日本放射化学会奨励賞
2022/03 - 第23回「環境放射能研究会」研究会奨励賞
2017/09 - 2017日本放射化学会年会・第61回放射化学討論会若手優秀発表賞
2017/06 - 4th International Conference on Environmental Radioactivity (ENVIRA2017) The Best Student Oral Presentation
2016/10 - 日本放射線影響学会第59回大会優秀発表賞

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Association Membership(s) (3)：

THE JAPAN SOCIETY FOR ANALYTICAL CHEMISTRY , THE JAPANESE RADIATION RESEARCH SOCIETY , THE JAPAN SOCIETY OF NUCLEAR AND RADIOCHEMICAL SCIENCES

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