Journal
JOURNAL OF MASS SPECTROMETRY
Volume 48, Issue 7, Pages 774-778Publisher
WILEY-BLACKWELL
DOI: 10.1002/jms.3205
Keywords
ambient ionization; forensics; condoms; DESI; polymers
Funding
- Natural Sciences and Engineering Research Council of Canada, University of Calabria
- Brazilian Council for Scientific and Technological Development
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Desorption electrospray ionization mass spectrometry (DESI-MS) is employed in the forensic analysis of chemical components present in condoms and imaging of latent fingerprints as circumstantial evidence of sexual assault. Polymers such as nonoxynol-9, polyethylene glycol, and polydimethylsiloxane, as well as small molecules additives such as N-methylmorpholine, N-octylamine, N,N-dibutyl formamide, and isonox 132, commonly used in lubricated condom formulations, were successfully characterized by DESI. The results suggest that DESI-MS is useful for identification of this type of evidence, and it has advantages over conventional extractive techniques, in terms of speed of analysis and ease of use. Copyright (c) 2013 John Wiley & Sons, Ltd.
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