Detection and Quantification of Chemical Warfare Agent Precursors and Surrogates by Selected Ion Flow Tube Mass Spectrometry

详细信息    查看全文

• 作者：Gregory J. Francis ; Daniel B. Milligan ; Murray J. McEwan
• 刊名：Analytical Chemistry
• 出版年：2009
• 出版时间：November 1, 2009
• 年：2009
• 卷：81
• 期：21
• 页码：8892-8899
• 全文大小：183K
• 年卷期：v.81,no.21(November 1, 2009)
• ISSN：1520-6882

文摘

The rate coefficients and branching ratios of 15 chemical warfare agent precursor and surrogate compounds reacting with H₃O⁺, NO⁺, and O₂⁺ have been measured in the laboratory using the selected ion flow tube (SIFT) technique. Measurement of the relevant kinetic parameters for these agents has enabled quantitative monitoring using the SIFT-MS analytical technique. Thirteen of the 15 compounds studied were found to have real-time detection limits in the parts-per-trillion-by-volume concentration range when measured on a standard commercial Voice100 instrument, with specific compounds having detection limits below 100 parts-per-trillion-by-volume.