Analysis of amino acids in latent fingerprint residue by capillary electrophoresis-mass spectrometry

Atherton, Tom and Croxton, Ruth and Baron, Mark and Gonzalez-Rodriguez, Jose and Gamiz-Gracia, Laura and Garcia-Campana, Ana M. (2012) Analysis of amino acids in latent fingerprint residue by capillary electrophoresis-mass spectrometry. Journal of Separation Science, 35 (21). pp. 2994-2999. ISSN 1615-9306

Full content URL: http://dx.doi.org/10.1002/jssc.201200398

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Item Type:Article
Item Status:Live Archive

Abstract

The analysis of the chemical composition of fingerprints is important for the development and improvement of existing fingerprint enhancement techniques. This study demonstrates the first analysis of a latent fingerprint sample, using an optimized CE-MS method. In total 12 amino acids were detected in the fingerprint sample. MS/MS fragmentation was used to provide additional identity confirmation, for which eight of the twelve detected amino acids generated confirmatory product ions. Nine amino acids were quantified and their relative abundances were consistent with previous studies with serine and glycine being the most abundant. The successful detection of amino acids from latent fingerprints demonstrates that CE-MS is a potential future technique for further study of such compounds in fingerprint samples.

Keywords:Amino acids, Capillary electrophoresis, Latent fingerprint residue, Mass spectrometry
Subjects:F Physical Sciences > F110 Applied Chemistry
F Physical Sciences > F410 Forensic Science
F Physical Sciences > F180 Analytical Chemistry
Divisions:College of Science > School of Life Sciences
ID Code:7124
Deposited On:14 Dec 2012 11:26

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