Rapid identification and desorption mechanisms of nitrogen-based explosives by ambient micro-fabricated glow discharge plasma desorption/ionization (MFGDP) mass spectrometry

In consider of great advantages for in situ, on-line, high throughput detection and fast identification of explosives, micro-fabricated glow discharge plasma desorption/ionization mass spectrometry in negative ion mode (NI-MFGDP-MS) was used to identify explosives in open air. The capability and the reliability of fast identification of explosives at atmospheric pressure have been successfully demonstrated with NI-MFGDP-MS and the method constructed in this paper has a good performance on quantitative analysis. The mechanisms of desorption of explosives in this system were also explored to identify fast and accurately. The results provide a guideline and a supplement to chemical libraries for the rapid and accurate identification of explosives in the field of antiterrorism and environmental conservation.186