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Analysis of sexual assault evidence by desorption electrospray ionization mass spectrometry
Author(s) -
Mirabelli Mario F.,
Chramow Alexander,
Cabral Elaine C.,
Ifa Demian R.
Publication year - 2013
Publication title -
journal of mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.475
H-Index - 121
eISSN - 1096-9888
pISSN - 1076-5174
DOI - 10.1002/jms.3205
Subject(s) - chemistry , desorption electrospray ionization , mass spectrometry , electrospray ionization , electrospray , chromatography , extractive electrospray ionization , analytical chemistry (journal) , ionization , organic chemistry , thermal ionization mass spectrometry , sample preparation in mass spectrometry , ion
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 © 2013 John Wiley & Sons, Ltd.