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

Atherton, Tom; Croxton, Ruth; Baron, Mark; Gonzalez-Rodriguez, Jose; Gámiz-Gracia, Laura; García-Campaña, Ana M.

Authors

Tom Atherton

Mark Baron

Jose Gonzalez-Rodriguez

Laura Gámiz-Gracia

Ana M. García-Campaña



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 total12 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.

Journal Article Type Article
Publication Date 2012-11
Journal Journal of Separation Science
Print ISSN 1615-9306
Publisher Wiley
Peer Reviewed Peer Reviewed
Volume 35
Issue 21
Pages 2994-2999
APA6 Citation Atherton, T., Croxton, R., Baron, M., Gonzalez-Rodriguez, J., Gámiz-Gracia, L., & García-Campaña, A. M. (2012). Analysis of amino acids in latent fingerprint residue by capillary electrophoresis-mass spectrometry: Other Techniques. Journal of Separation Science, 35(21), 2994-2999. https://doi.org/10.1002/jssc.201200398
DOI https://doi.org/10.1002/jssc.201200398
Keywords Amino acids; Capillary electrophoresis; Latent fingerprint residue; Mass spectrometry
Publisher URL https://onlinelibrary.wiley.com/doi/abs/10.1002/jssc.201200398
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