Source Identification of pesticides using stable isotope

2010 Fiscal Year Final Research Report

• 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
• Keywords: 環境鑑識学 / 農薬 / 安定同位体比 / 異同識別 / 分析化学

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 carbon isotope Ratio (2011)
  • Author(s): Asakura Isao, Hiroto Kawashima
  • Organizer: Abstract of International Environmental Forensics 2011 conference, Cambridge
  • Place of Presentation: U.K
  • Year and Date: 20110000
• [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
  • Year and Date: 20110000
• [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
  • Year and Date: 20110000
• [Remarks] ホームページ等
  • URL: http://www.akita-pu.ac.jp/stic/souran/scholar/detail.php?id=2086.