Investigations into the initial composition of latent fingermark lipids by gas chromatography-mass spectrometry

A. A. Frick; G. Chidlow; S. W. Lewis; W. van Bronswijk

doi:10.1016/j.forsciint.2015.06.032

Investigations into the initial composition of latent fingermark lipids by gas chromatography-mass spectrometry

A. A. Frick, G. Chidlow, S. W. Lewis^*, W. van Bronswijk

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

37 Citations (Scopus)

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Abstract

A more comprehensive understanding of the variability of latent fingermark composition is essential to improving current fingermark detection capabilities in an informed manner. Gas chromatography-mass spectrometry was used to examine the composition of the lipid fraction of latent fingermarks collected from a population of over 100 donors. Variations in the appearances of chromatograms from different donors were apparent in the relative peak sizes of compounds including free fatty acids, squalene, cholesterol and wax esters. Principal component analysis was used as an exploratory tool to explore patterns in this variation, but no correlation to donor traits could be discerned. This study also highlights the practical and inherent difficulties in collecting reproducible samples.

Original language	English
Pages (from-to)	133-147
Number of pages	15
Journal	Forensic Science International
Volume	254
Early online date	9 Jul 2015
DOIs	https://doi.org/10.1016/j.forsciint.2015.06.032
Publication status	Published - 1 Sept 2015
Externally published	Yes

Keywords

Composition
Gas chromatography-mass spectrometry
Latent fingermarks
Lipids

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10.1016/j.forsciint.2015.06.032

Investigations into the initial composition of latent fingermark lipids by gas chromatography-mass spectrometryAccepted author manuscript, 2.78 MBLicence: CC BY-NC-ND

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abstract = "A more comprehensive understanding of the variability of latent fingermark composition is essential to improving current fingermark detection capabilities in an informed manner. Gas chromatography-mass spectrometry was used to examine the composition of the lipid fraction of latent fingermarks collected from a population of over 100 donors. Variations in the appearances of chromatograms from different donors were apparent in the relative peak sizes of compounds including free fatty acids, squalene, cholesterol and wax esters. Principal component analysis was used as an exploratory tool to explore patterns in this variation, but no correlation to donor traits could be discerned. This study also highlights the practical and inherent difficulties in collecting reproducible samples.",

keywords = "Composition, Gas chromatography-mass spectrometry, Latent fingermarks, Lipids",

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AB - A more comprehensive understanding of the variability of latent fingermark composition is essential to improving current fingermark detection capabilities in an informed manner. Gas chromatography-mass spectrometry was used to examine the composition of the lipid fraction of latent fingermarks collected from a population of over 100 donors. Variations in the appearances of chromatograms from different donors were apparent in the relative peak sizes of compounds including free fatty acids, squalene, cholesterol and wax esters. Principal component analysis was used as an exploratory tool to explore patterns in this variation, but no correlation to donor traits could be discerned. This study also highlights the practical and inherent difficulties in collecting reproducible samples.

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Investigations into the initial composition of latent fingermark lipids by gas chromatography-mass spectrometry

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