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.

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.

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

• Journal Article Type: Article
• Acceptance Date: Jul 20, 2012
• Online Publication Date: Sep 7, 2012
• Publication Date: 2012-11
• Deposit Date: Dec 18, 2019
• Journal: Journal of Separation Science
• Print ISSN: 1615-9306
• Publisher: Wiley
• Peer Reviewed: Peer Reviewed
• Volume: 35
• Issue: 21
• Pages: 2994-2999
• DOI: https://doi.org/10.1002/jssc.201200398
• Keywords: Amino acids; Capillary electrophoresis; Latent fingerprint residue; Mass spectrometry
• Public URL: https://hull-repository.worktribe.com/output/3316238
• Publisher URL: https://onlinelibrary.wiley.com/doi/abs/10.1002/jssc.201200398