論文

• Toyoda, S., H. Yamagishi, A. Fujii, N. Yoshida, S. Watanabe. Identifying the origin of nitrous oxide dissolved in deep ocean by concentration and isotopocule analyses, Scientific Reports, Vol. 9(1), p. 7790, May 2019.
• Antra Priyadarshi, Jason Hill-Falkenthal, Mark Thiemens, Naohiro Yoshida, Sakae Toyoda, Keita Yamada, Arata Mukotaka, Ayako Fujii, Mitsuo Uematsu, Shiro Hatakeyama, Izumi Noguchi, Yukihiro Nojiri, Hiroshi Tanimoto. Detection of radioactive 35S at Fukushima and other Japanese sites, Journal of Geophjsical Research: Atmospheres, Vol. 118, 1020–1027, 2013.
• Ayako Fujii, Sakae Toyoda, Osamu Yoshida, Shuichi Watanabe, Kenichi Sasaki, Naohiro Yoshida. Distribution of nitrous oxide dissolved in water masses in the eastern subtropical North Pacific and its origin inferred from isotopomer analysis, J Oceanography, Vol. 69, pp. 47-157, 2013.
• Sakae Toyoda, Yuuri Suzuki, Shohei Hattori, Keita Yamada, Ayako Fujii, Naohiro Yoshida, Rinako Uno, Kouki Murayama, Hiroshi Shiomi. Isotopomer Analysis of Production and Consumption Mechanisms of N2O and CH4 in an Advanced Wastewater Treatment System, Environ. Sci. Technol., Vol. 45, No. 3, pp. 917–922, Dec. 2010.

国際会議発表 (査読なし・不明)

• Sakae Toyoda, Osamu Yoshida, Hiroaki Yamagishi, Ayako Fujii, Naohiro Yoshida, Syuichi Watanabe. Origin of nitrous oxide dissolved in deep ocean water deduced from concentration and isotopocule analyses, 9th International Symposium on Isotopomers (ISI2018), Mar. 2018.
• Sakae Toyoda, Yuuri Suzuki, Shohei Hattori, Keita Yamada, Ayako Fujii, Naohiro Yoshida, Rina Kouno, Kouki Murayama, Hiroshi Shiomi. Isotopomer analysis of production/consumption mechanisms of nitrous oxide, ISI2010, June 2010.
• Shou Imai, Sakae Toyoda, Ayako Fujii, Keita Yamada, Naohiro Yoshida. Distribution of Methane at WOCE-P01･P03 lines in the North Pacific, 4th International Symposium on Isotopomers, 4th International Symposium on Isotopomers proceedings, ISI2008 Science Committee, pp. 176-182, Oct. 2008.
• Ayako Fujii, Sakae Toyoda, Naohiro Yoshida. Concentrations and isotopic characterics of nitrous oxide in the eastern subtropical North Pacific Ocean, 4th International Symposium on Isotopomers, 4th International Symposium on Isotopomers proceedings, ISI2008 Science Committee, pp. 83-85, Oct. 2008.
• Chisato Yoshikawa, Ayako Fujii, Akiko Makabe, Yoshifumi Tobari, Sakae Toyoda, Naohiro Yoshida. Isotopic analysis of nitrate in the western equatorial Pacific, 4th International Symposium on Isotopomers, 4th International Symposium on Isotopomers proceedings, ISI2008 Science Committee, pp. 192-194, Oct. 2008.

国内会議発表 (査読なし・不明)

• 豊田 栄, 藤井彩子, 吉田尚弘, 山岸洋明, 吉田 磨, 渡邉修一. 濃度および同位体比の分布から推定される海洋における溶存一酸化二窒素の起源, JpGU Meeting 2013, May 2013.
• 向高 新, 豊田 栄, 山田桂太, 藤井彩子, 吉田尚弘. マイクロ波放電分解法による硝酸塩の三種酸素同位体測定法の開発, 2011年度日本地球化学会, 2011年度日本地球化学会要旨集, 日本地球化学会, pp. 112, Sept. 2011.
• 吉田 磨, 今井 翔, 河野 恒平, 豊田 栄, 窪田 千穂, 藤井 彩子, 山田 桂太, 渡邉 修一, 吉田 尚弘. 太平洋WOCE-P01・P03・P21における溶存メタンの動態, 日本地球化学会2009年会, 日本地球化学会2009年会講演要旨集, 日本地球化学会, Vol. 57, 337, Sept. 2009.
• 服部祥平, 山田桂太, 豊田栄, 鈴木有理, 藤井彩子, 吉田尚弘, 河野里名, 村山康樹. 下水高度処理過程における溶存態メタンの安定同位体を用いた解析, 日本地球化学会第55回年会, 日本地球化学会第55回年会講演要旨集, 日本地球化学会, p. 154, Sept. 2008.
• 今井翔, 吉田 磨, 河野恒平, 豊田栄, 藤井彩子, 山田桂太, 渡邉修一, 吉田尚弘. 北太平洋WOCE-P01・P03 におけるメタンの挙動, 2008年度日本地球化学会第55回年会, 日本地球化学会第55回年会講演要旨集, 日本地球化学会, p. 229, Sept. 2008.

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