文章基本信息

标题：ポータブル質量分析計MX908の化学剤検知性能
本地全文：下载
作者：矢野宏治 ; 須見将太 ; 西迫巧也等
期刊名称：日本法科学技術学会誌
印刷版ISSN：1880-1323
电子版ISSN：1881-4689
出版年度：2022
卷号：27
期号：1
页码：49-62
DOI：10.3408/jafst.816
语种：Japanese
出版社：Japanese Association of Forensic Science and Technology
摘要：An MX908 portable mass spectrometer utilizing low-vacuum (high pressure) mass analyzer was evaluated for the detection of chemical warfare agents. The MX908 mass spectrometer accommodates volatile agents like sarin (GB) in the vapor mode and low-volatile agents like VX in the trace mode. We verified that VX could be detected in the trace mode, however a Nomex swab was superior to the original PTFE swab in terms of the alarm limit of VX. For the screening of VX on stainless-steel or plastic surface, we recommend to wet the Nomex swab with 2-propanol (10 μL) prior to wiping the surface or drop 2-propanol (10 μL) on the surface and wipe with the Nomex swab immediately. The optimized wiping methods could detect 100 ng of VX on both of the surfaces. GB was detected at 0.25-0.50 mg/m3 in the vapor mode, which was compatible with a common ion-mobility spectrometry instrument (LCD 3.3). Tabun (GA) was properly detected at 1 mg/m3, however neither MX908 nor LCD 3.3 could discriminate soman (GD) and cyclohexylsarin (GF) at 1 mg/m3. Sulfur mustard (HD) could not be detected at 64 mg/m3. Because significant loss (18-54%) during vapor preparation presumably due to the adsorption on the surface of the sampling bag and the transfer tube was observed, actual sensitivity would be superior to the above-mentioned nominal values.
关键词：Portable mass spectrometer; Chemical warfare agent; On-site analysis