Latent fingerprint chemistry: understanding individual variation

Atherton, Tom and Baron, Mark and Croxton, Ruth and Downham, Rory and Gonzalez-Rodriguez, Jose and Sears, Vaugh (2009) Latent fingerprint chemistry: understanding individual variation. In: RSC Analytical Reseach Forum.

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Abstract

Fingerprint residue is composed of a complex mixture of secretions from various skin glands, material from the skin’s surface and environmental contaminants1. It has been found that there are variations in the composition of different individual’s prints.
Powder suspension is a technique for the development of latent fingerprints on non-porous surfaces. It is currently unknown how the technique works or why some people’s fingerprints develop well and some do not. It is thought that the chemical differences in fingerprint residue may be responsible for the differences in development.
This poster describes a Gas Chromatography-Mass Spectrometry method for the analysis of fatty and amino acids present in donated fingerprint residue and the relationship between these components and how well powder suspension development worked.

Item Type:Conference or Workshop Item (Poster)
Additional Information:Fingerprint residue is composed of a complex mixture of secretions from various skin glands, material from the skin’s surface and environmental contaminants1. It has been found that there are variations in the composition of different individual’s prints. Powder suspension is a technique for the development of latent fingerprints on non-porous surfaces. It is currently unknown how the technique works or why some people’s fingerprints develop well and some do not. It is thought that the chemical differences in fingerprint residue may be responsible for the differences in development. This poster describes a Gas Chromatography-Mass Spectrometry method for the analysis of fatty and amino acids present in donated fingerprint residue and the relationship between these components and how well powder suspension development worked.
Keywords:powder suspension, amino acid, latent fingerprints, gas chromatography-mass spectrometry, fatty acid
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:3534
Deposited By: Ruth Croxton
Deposited On:24 Oct 2010 19:09
Last Modified:13 Mar 2013 08:49

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