- 一般社団法人 日本質量分析学会
- Journal of the Mass Spectrometry Society of Japan (ISSN:13408097)
- vol.53, no.3, pp.157-163, 2005 (Released:2006-04-05)
2004 was the 10th anniversary of the Matsumoto sarin incident, and 2005 is the 10th anniversary of the Tokyo Subway Attack. National Research Institute of Police Science has been engaged in forensic examinations into these incidents. Chemical analyses of the victim's blood, water, soil, and wipe samples were performed by organic solvent extraction, followed by gas chromatography-mass spectrometry with or without tert-butyldimethylsilylation. As a result, sarin and its hydrolysis products (isopropylmethyl phosphonate and methylphosphonate), derived from sarin were positively identified by their mass spectra and retention indices. Furthermore, from the chemical analysis of evidence samples taken from the scene of manufacturing plant, precusors, and byproducts corresponding to synthetic routs of sarin has been identified. This paper presents characteristics of nerve agents, sample preparation of sarin, optimization of GC-MS, and case reports from a standpoint of effectiveness of GC-MS.