Mass Spectral Fragmentation of VX; Final rept

摘要

The objective of this study was to provide structural identification of VX fragment ions formed during mass spectrometric analysis, elucidation of fragmentation pathways, and a compilation of tandem mass spectral product ion spectra to aid in detection and confirmation of trace levels of VX in complex matrices. Fragmentation was observed and is reported here for both electron ionization and chemical ionization (methane) conditions. Isotopic labeling analysis using d5-VX was performed to provide confirmation of selected structural assignments, particularly for the m/z 139 ion for which two structures have been proposed in the literature.