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

    227825_161245_FSI_Interdonor_variability_eSpace.pdf (2.782Mb)
    Access Status
    Open access
    Authors
    Frick, Amanda
    Chidlow, Geoff
    Lewis, Simon
    Van Bronswijk, Wilhelm
    Date
    2015
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Frick, A. and Chidlow, G. and Lewis, S. and Van Bronswijk, W. 2015. Investigations into the initial composition of latent fingermark lipids by gas chromatography-mass spectrometry. Forensic Science International. 254: pp. 133–147.
    Source Title
    Forensic Science International
    DOI
    10.1016/j.forsciint.2015.06.032
    ISSN
    0379-0738
    School
    Department of Chemistry
    URI
    http://hdl.handle.net/20.500.11937/47095
    Collection
    • Curtin Research Publications
    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.

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