Analysis of sexual assault evidence by desorption electrospray ionization mass spectrometry

被引:32
|
作者
Mirabelli, Mario F. [1 ,2 ]
Chramow, Alexander [1 ]
Cabral, Elaine C. [1 ]
Ifa, Demian R. [1 ]
机构
[1] York Univ, Dept Chem, N York, ON M3J 1P3, Canada
[2] Univ Calabria, Dept Chem, I-87030 Cosenza, Italy
来源
JOURNAL OF MASS SPECTROMETRY | 2013年 / 48卷 / 07期
基金
加拿大自然科学与工程研究理事会;
关键词
ambient ionization; forensics; condoms; DESI; polymers; PERSONAL LUBRICANTS; CONDOM LUBRICANTS; FORENSIC ANALYSIS; IDENTIFICATION; POLYMERS; TIME;
D O I
10.1002/jms.3205
中图分类号
Q5 [生物化学];
学科分类号
071010 ; 081704 ;
摘要
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.
引用
收藏
页码:774 / 778
页数:5
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