Neutral desorption using a sealed enclosure to sample explosives on human skin for rapid detection by EESI-MS
Huanwen ChenCollege of Chemistry, Biology, and Material Science, East China Institute of Technology, 344000, Fuzhou, ChinaBin HuCollege of Chemistry, Biology, and Material Science, East China Institute of Technology, 344000, Fuzhou, ChinaYan HuCollege of Chemistry, Biology, and Material Science, East China Institute of Technology, 344000, Fuzhou, ChinaYanfu HuanCollege of Chemistry, Jilin University, Changchun, P.R. ChinaZhiquan ZhouCollege of Information Science and Engineering, Harbin Institute of Technology at Weihai, 264000, Weihai, P.R. ChinaXiaolin QiaoCollege of Information Science and Engineering, Harbin Institute of Technology at Weihai, 264000, Weihai, P.R. China
2008en
ABI
Abstract
A novel air-tight neutral desorption enclosure has been fabricated to noninvasively sample low picograms of explosives 2,4,6-trinitrotoluene (TNT), hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX), octahydro-1,3,5,7-tetranitro-1,3,5,7-tetraazocine (HMX), triacetone triperoxide (TATP), and nitroglycerin (NG) from human skin using a neutral nitrogen gas beam. Without further sample pretreatment, the explosive mixtures collected from the skin surface were directly transported by a nitrogen carrier gas over a 4-m distance for sensitive detection and rapid identification by extractive electrospray ionization tandem mass spectrometry.
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