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Method Development For The Analysis Of Smokeless Powders And Organic Gunshot Residue By Ultra Performance Liquid Chromatography With Tandem Mass Spectrometry, Jennifer L. Thomas
Method Development For The Analysis Of Smokeless Powders And Organic Gunshot Residue By Ultra Performance Liquid Chromatography With Tandem Mass Spectrometry, Jennifer L. Thomas
FIU Electronic Theses and Dissertations
The goal of this project was to develop a rapid separation and detection method for analyzing organic compounds in smokeless powders and then test its applicability on gunshot residue (GSR) samples. In this project, a total of 20 common smokeless powder additives and their decomposition products were separated by ultra performance liquid chromatography (UPLC) and confirmed by tandem mass spectrometry (MS/MS) using multiple reaction monitoring mode (MRM). Some of the targeted compounds included diphenylamines, centralites, nitrotoluenes, nitroglycerin, and various phthalates. The compounds were ionized in the MS source using simultaneous positive and negative electrospray ionization (ESI) with negative atmospheric pressure …