Issue 16, 2015

Lifetimes and stabilities of familiar explosive molecular adduct complexes during ion mobility measurements

Abstract

Trapped ion mobility spectrometry coupled to mass spectrometry (TIMS-MS) was utilized for the separation and identification of familiar explosives in complex mixtures. For the first time, molecular adduct complex lifetimes, relative stability, binding energies and candidate structures are reported for familiar explosives. Experimental and theoretical results showed that the adduct size and reactivity, complex binding energy and the explosive structure tailor the stability of the molecular adduct complex. The flexibility of TIMS to adapt the mobility separation as a function of the molecular adduct complex stability (i.e., short or long IMS experiments/low or high IMS resolution) permits targeted measurements of explosives in complex mixtures with high confidence levels.

Graphical abstract: Lifetimes and stabilities of familiar explosive molecular adduct complexes during ion mobility measurements

Supplementary files

Article information

Article type
Paper
Submitted
17 Mar 2015
Accepted
18 Jun 2015
First published
19 Jun 2015

Analyst, 2015,140, 5692-5699

Author version available

Lifetimes and stabilities of familiar explosive molecular adduct complexes during ion mobility measurements

A. McKenzie-Coe, J. D. DeBord, M. Ridgeway, M. Park, G. Eiceman and F. Fernandez-Lima, Analyst, 2015, 140, 5692 DOI: 10.1039/C5AN00527B

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