Detection and Quantification of Chemical Warfare Agent Precursors and Surrogates by Selected Ion Flow Tube Mass Spectrometry
Detection and Quantification of Chemical Warfare Agent Precursors and Surrogates by Selected Ion Flow Tube Mass Spectrometry
复制标题
DOI：
10.1021/ac901486c
复制
发表时间：
2009-11-01
影响因子：
7.4
通讯作者：
McEwan, Murray J.
中科院分区：
文献类型：
--
作者：
Francis, Gregory J.;Milligan, Daniel B.;McEwan, Murray J.
用选择离子流管(SIFT)技术在实验室测定了15种化学战剂前体和替代化合物与H3O+、NO+和O-2(+)反应的速率系数和支化比。通过测量这些试剂的相关动力学参数，可以使用SIFT-MS分析技术进行定量监测。研究发现，在所研究的15种化合物中，有13种在标准商用Voice 100仪器上测量时，实时检测限值在万亿分之几的浓度范围内，特定化合物的检测限值低于万亿分之100。
The rate coefficients and branching ratios of 15 chemical warfare agent precursor and surrogate compounds reacting with H3O+, NO+, and O-2(+) 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 Voice 100 instrument, with specific compounds having detection limits below 100 parts-per-trillion-by-volume.