Detection of explosives on skin using ambient ionization mass spectrometry
D. R. JustesDepartment of Chemistry, 560 Oval Drive, Purdue University, West Lafayette, IN 47906, USANari TalatyDepartment of Chemistry, 560 Oval Drive, Purdue University, West Lafayette, IN 47906, USAIsmael Cotte-RodríguezDepartment of Chemistry, 560 Oval Drive, Purdue University, West Lafayette, IN 47906, USAR. Graham CooksDepartment of Chemistry, 560 Oval Drive, Purdue University, West Lafayette, IN 47906, USA
2007en
ABI
Abstract
Single nanogram amounts of the explosives TNT, RDX, HMX, PETN and their mixtures were detected and identified in a few seconds on the surface of human skin without any sample preparation by desorption electrospray ionization (DESI) using a spray solution of methanol-water doped with sodium chloride to form the chloride adducts with RDX, HMX, and PETN while TNT was examined as the radical anion and tandem mass spectrometry was used to confirm the identifications.
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