Development of CV-MC-ICP/MS and implication for determining atmospherically-derived mercery in fishes

• Project/Area Number: 23710021
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Environmental dynamic analysis
• Research Institution: National Institute for Environmental Studies
• Principal Investigator: TAKEUCHI Akinori 独立行政法人国立環境研究所, 環境計測研究センター, 研究員 (10469744)
• Project Period (FY): 2011 – 2013
• Project Status: Completed (Fiscal Year 2013)
• Budget Amount: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000); Fiscal Year 2013: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2012: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2011: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
• Keywords: 環境計測 / 水銀 / 水銀同位体 / 物質循環 / 水銀同位体組成 / 非質量依存同位体分別 / 生物モニタリング / 水圏環境 / 光還元反応 / CV-MC-ICP/MS / 水銀汚染

Research Abstract

In order to solve the global mercury pollution, a proxy that indicates different sources of mercury (Hg) and Hg biogeochemical cycle must be developed. In this study, an analytical technique for determining Hg isotope ratios in fishes precisely was developed using cold-vapor generation and multi-collector ICP/MS. The Hg isotopic compositions in fishes indicated their mass-independent fractionation and are totally different from those of Hg in sediments and rocks derived from naturally-emitted Hg.

Research Products

• [Journal Article] 硫黄同位体分析による西日本日本海沿岸の弥生時代後期から古墳時代の墳墓における朱の産地同定の試み (2013)
  • Author(s): 南武志,河野摩耶,古川登,高橋和也,武内章記,今津節生
  • Journal Title: 地球化学 Volume: 47 Pages: 237-243
  • NAID: 110009767289
  • Peer Reviewed
• [Journal Article] 同位体分析法を用いた桜井茶臼山古墳出土朱の産地推定の試み (2012)
  • Author(s): 寺沢薫,南武志,武内章記,高橋和也,東影悠
  • Journal Title: 青陵 Volume: 136 Pages: 1-4
• [Journal Article] Status of Red Stingray (Dasyatis akajei) Livers for Japanese Specimen Banking at National Institute for Environmental Studies, Unscathed by the 2011 Tohoku Earthquake (2012)
  • Author(s): Akinori Takeuchi, Yasuyuki Shibata, Atsushi Tanaka
  • Journal Title: Biopreservation and Biobanking
  • Peer Reviewed
• [Presentation] 地球規模の水銀汚染とその実態把握に向けた水銀同位体計測技術 (2013)
  • Author(s): 武内章記
  • Organizer: 日本地球惑星科学連合2013年大会
  • Place of Presentation: 千葉市
• [Presentation] Preliminary results of mercury isotope variations in tuna fish from Northwest Pacific and Indian Oceans (2013)
  • Author(s): Akinori Takeuchi
  • Organizer: ICMGP2013
  • Place of Presentation: エジンバラ
• [Presentation] 日本近海マグロの水銀同位体組成 (2012)
  • Author(s): 武内章記
  • Organizer: 第21回環境化学討論会
• [Presentation] 日本近海マグロの水銀同位体組成 (2012)
  • Author(s): 武内章記
  • Organizer: 第２１回環境化学討論会
  • Place of Presentation: 愛媛県県民文化会館
• [Presentation] Preliminary results of mercury isotope variations in tuna fish from Northwest Pacific and Indian Oceans
  • Author(s): Akinori Takeuchi, Tadashi Miyazaki, Akira Noda, Masato Moteki, Sachiyo Sueki
  • Organizer: ICMGP2013
• [Presentation] 地球規模の水銀汚染とその実態把握に向けた水銀同位体計測技術
  • Author(s): 武内章記
  • Organizer: 日本地球惑星科学連合2013年大会
• [Presentation] 国産辰砂(硫化水銀)の水銀同位体組成
  • Author(s): 武内章記、南武志
  • Organizer: 2011年度日本地球化学会第58回年会
• [Presentation] Optimization of CV-MC-ICPMS for Mercury Isotope Analysis
  • Author(s): Akinori Takeuchi, Takeshi Minami, Atsushi Tanaka
  • Organizer: ICAS2011