Study of bioiogeochemical cycles of Fe(II) in the ocean by using an in-situ analyzer

• Project/Area Number: 21310007
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Environmental dynamic analysis
• Research Institution: The University of Tokyo
• Principal Investigator: OBATA Hajime 東京大学, 大気海洋研究所, 准教授 (90334309)
• Co-Investigator(Kenkyū-buntansha): OKAMURA Kei 高知大学, 自然科学系, 准教授 (70324697) ; MARUO Masahiro 滋賀県立大学, 環境科学部, 准教授 (80275156)
• Project Period (FY): 2009 – 2011
• Project Status: Completed (Fiscal Year 2011)
• Budget Amount: ¥17,420,000 (Direct Cost: ¥13,400,000、Indirect Cost: ¥4,020,000); Fiscal Year 2011: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000); Fiscal Year 2010: ¥7,020,000 (Direct Cost: ¥5,400,000、Indirect Cost: ¥1,620,000); Fiscal Year 2009: ¥6,890,000 (Direct Cost: ¥5,300,000、Indirect Cost: ¥1,590,000)
• Keywords: 化学海洋学 / 現場分析 / 海洋 / 鉄 / 還元化学種 / 化学発光法 / 現場型自動分析計 / 化学発光 / 鉄(II) / 現場型分析装置

Research Abstract

For understanding of the biogeochemical cycles of iron in the ocean, a new in-situ analytical system was developed to determine picomolar of Fe(II) in seawater by using luminol chemiluminescence detection. The detection limit was about 10 pM. We successfully revealed the Fe(II) distributions in the surface waters of the Pacific Ocean with this system.

Research Products

• [Journal Article] Coupled issotopic systematics of surface cerium and neodymium in the Pacific Ocean (2011)
  • Author(s): Tazoe, H., H. Obata, and T. Gamo
  • Journal Title: Geochemistry, Geophysics, Geosystems Volume: 12 Issue: 4 Pages: 1-14
  • DOI: 10.1029/2010gc003342
  • Peer Reviewed
• [Journal Article] Unique elution behavior of bromide and nitrate in anion-exchange chromatography using aqueous potassium chloride eluent containing cadmium or zinc ion (2011)
  • Author(s): Maruo, M. and H. Obata
  • Journal Title: Analytical Sciences Volume: 27 Pages: 949-951
  • NAID: 10029761242
  • Peer Reviewed
• [Journal Article] 現場型マンガン分析装置の小型軽量化と設置連続観測の実例 (2011)
  • Author(s): 野口拓郎, 岡村慶, 八田万有美, 紀本英志, 鈴江崇彦, 石橋純一郎, 山中寿朗, 藤井輝夫
  • Journal Title: 物理探査 Volume: 64 Pages: 291-297
  • NAID: 10030477301
  • Peer Reviewed
• [Journal Article] 水圏試料中微量溶存鉄(11)の比色定量における至適pH条件に関する再検討 (2010)
  • Author(s): 丸尾雅啓, 永岡一樹, 小林一星, 小沢佳那子, 小畑元
  • Journal Title: 分析化学 Volume: 59 Pages: 1143-1147
  • Peer Reviewed
• [Journal Article] 水圏試料中微量溶存鉄(II)の比色定量における至適pH条件に関する再検討 (2010)
  • Author(s): 丸尾雅啓, 永岡一樹, 小林一星, 小沢佳那子, 小畑元
  • Journal Title: 分析化学 Volume: 59 Pages: 1143-1147
  • NAID: 10026969184
  • Peer Reviewed
• [Presentation] Pseudopolarographyによる湖水中金属配位子の評価 (2011)
  • Author(s): 丸尾雅啓、小畑元
  • Organizer: 日本陸水学会第76回大会
  • Place of Presentation: 島根大学(島根県)
  • Year and Date: 2011-09-25
• [Presentation] 現場型自動分析計による海水中の鉄(II)の測定 (2011)
  • Author(s): 小畑元、馬瀬輝、脇山真、蒲生俊敬、丸尾雅啓、岡村慶、紀本英志
  • Organizer: 2011年度日本地球化学会年会
  • Place of Presentation: 北海道大学学術交流会館(北海道)
  • Year and Date: 2011-09-15
• [Presentation] Automated in-situ flow analytical method of Fe(II) in seawater using luminol chemiluminescence detection (2011)
  • Author(s): H. Obata, A. Mase, S. Wakiyama, T. Gamo, M. Maruo, K. Okamura
  • Organizer: IUPAC International Congress on Analytical Sciences 2011
  • Place of Presentation: 京都国際会館(京都府)
  • Year and Date: 2011-05-26
• [Presentation] Comparative Study of the Determinations of Iron(II) in Freshwater by Luminol Chemiluminescence and Spectrophotometry Using PDTS (2011)
  • Author(s): Maruo, M., K. Nagaoka, Y. Yaginuma, S. Wakiyama, A. Mase, H. Obata
  • Organizer: IUPAC International Congress on Analytical Sciences 2011
  • Place of Presentation: 京都国際会館(京都府)
  • Year and Date: 2011-05-26
• [Presentation] Automated in-situ flow analytical method of Fe(II) in seawater using luminol chemiluminescence detection (2011)
  • Author(s): H.Obata, A.Mase, S.Wakiyama, T.Gamo, M.Maruo, K.Okamura
  • Organizer: IUPAC Interanational Congress on Analytical Sciences 2011
  • Place of Presentation: 京都国際会館(京都府)
  • Year and Date: 2011-05-26
• [Presentation] Comparative Study of the Determinations of Iron(II) in Freshwater by Luminol Chemiluminescence and Spectrophotometry Using PDTS (2011)
  • Author(s): M.Maruo, K.Nagaoka, Y.Yaginuma, S.Wakiyama, A.Mase, H.Obata
  • Organizer: IUPAC Interanational Congress on Analytical Sciences 2011
  • Place of Presentation: 京都国際会館(京都府)
  • Year and Date: 2011-05-26
• [Presentation] 湖水中溶存鉄(II)の存在状態および定量値に与える溶存有機物の影響 (2010)
  • Author(s): 丸尾雅啓、永岡一樹、小林一星、小沢佳那子、小畑元
  • Organizer: 日本陸水学会第75回大会
  • Place of Presentation: 弘前大学(青森県)
  • Year and Date: 2010-09-18
• [Presentation] 湖水中溶存鉄(II)の存在状態および定量値に与える溶存有機物の影響 (2010)
  • Author(s): 丸尾雅啓、永岡一樹、小林一星、小沢佳那子、小畑元
  • Organizer: 日本陸水学会第75回大会
  • Place of Presentation: 弘前大学
  • Year and Date: 2010-09-18
• [Presentation] 琵琶湖水中の腐植物質がFe(II)の挙動に与える影響について (2009)
  • Author(s): 永岡一樹,丸尾雅啓,大田啓一,小畑元
  • Organizer: 日本陸水学会第74回大会
  • Place of Presentation: 大分大学(大分県)
  • Year and Date: 2009-09-17
• [Presentation] 琵琶湖水中の腐植物質がFe(II)の挙動に与える影響について (2009)
  • Author(s): 永岡一樹
  • Organizer: 日本陸水学会第74回大会
  • Place of Presentation: 大分大学(大分)
  • Year and Date: 2009-09-17
• [Remarks]
  • URL: http://co.aori.u-tokyo.ac.jp/micg/Obata.html