Source Identification of pesticides using stable isotope

• Project/Area Number: 20200023
• Research Category: Grant-in-Aid for Scientific Research on Innovative Areas (Research a proposed research project)
• Allocation Type: Single-year Grants
• Research Field: Social systems engineering/Safety system; Environmental impact assessment/Environmental policy
• Research Institution: Akita Prefectural University
• Principal Investigator: KAWASHIMA Hiroto Akita Prefectural University, システム科学技術学部, 助教 (60381331)
• Project Period (FY): 2008 – 2010
• Project Status: Completed (Fiscal Year 2010)
• Budget Amount: ¥33,280,000 (Direct Cost: ¥25,600,000、Indirect Cost: ¥7,680,000); Fiscal Year 2010: ¥11,700,000 (Direct Cost: ¥9,000,000、Indirect Cost: ¥2,700,000); Fiscal Year 2009: ¥9,230,000 (Direct Cost: ¥7,100,000、Indirect Cost: ¥2,130,000); Fiscal Year 2008: ¥12,350,000 (Direct Cost: ¥9,500,000、Indirect Cost: ¥2,850,000)
• Keywords: 環境鑑識学 / 農薬 / 安定同位体比 / 異同識別 / 分析化学 / 残留農薬 / 鑑識学 / 環境動態析 / GC/C/IRMS / 個別化合物安定同立体比 / 炭素安定同立体 / 食品 / 環境動態解析 / GC / C / IRMS / 個別化合物安定同位体比 / 炭素安定同位体

Research Abstract

I researched Japan/China identification of methamidophos as bothered "poisoned gyoza". For high precision and accuracy, the many reagents in combustion tube were tested. As the results, the copper oxide with nickel and platinum was selected. In addition, I installed cryofocusing system using liquid nitrogen between combustion and IRMS and can analyze low concentration of methamidophos. Finally, Chinese methamidophos pesticide is very closed to a methamidophos reagent bought in Japan by using δ^<13>C.

Research Products

• [Journal Article] Source Evaluation of Diazinon using Stable Carbon Isotope Ratio (2010)
  • Author(s): Hiroto Kawashima, Yasuhiro Katayama
  • Journal Title: Environmental Forensics vol.11 Pages: 363-371
  • Peer Reviewed
• [Presentation] Source identification of methamidophos by using stable carbon isotope ratio (2011)
  • Author(s): Isao Asakura, Hiroto Kawashima
  • Organizer: The International Network of Environmental Forensics (INEF) 2011
  • Place of Presentation: ケンブリッジ,英国(発表確定)
  • Year and Date: 2011-07-25
• [Presentation] Source identification of pesticides by using GC/C/IRMS and cryofocusing system (2011)
  • Author(s): Hiroto Kawashima, Isao Asakura
  • Organizer: Advances in Stable Isotope Techniques and Applications (ASITA) Workshop 2011
  • Place of Presentation: キングストン,カナダ(発表確定)
  • Year and Date: 2011-06-13
• [Presentation] Source identification of methamidophos by using carbon isotope Ratio (2011)
  • Author(s): Asakura Isao, Hiroto Kawashima
  • Organizer: Abstract of International Environmental Forensics 2011 conference, Cambridge
  • Place of Presentation: U.K
• [Presentation] Source identification of pesticides by using GC/C/IRMS and cryofocusing system (2011)
  • Author(s): Isao Asakura, Hiroto Kawashima
  • Organizer: Abstract of ASITA-Advances in Stable Isotope Techniques and Applications-
  • Place of Presentation: Kingston, Canada
• [Presentation] メタミドホス中の炭素安定同位体比の高精度分析方法の確立と異同識別 (2011)
  • Author(s): 浅倉功, 川島洋人
  • Organizer: 日本法科学技術学会
  • Place of Presentation: 東京
• [Remarks] ホームページ等
  • URL: http://www.akita-pu.ac.jp/stic/souran/scholar/detail.php?id=2086.
• [Remarks]
  • URL: http://www.akita-pu.ac.jp/stic/souran/scholar/detail.php?id=208
• [Remarks]
  • URL: http://www.akita-pu.ac.jp/stic/souran/scholar/detail.php?id=208
• [Remarks]
  • URL: http://www.akita-pu.ac.jp/stic/souran/scholar/detail.php?id=208