Identification of Organic Compounds Solvent Extracted from Paper and Glass Soxhlet Thimbles

Nowicki, H. G.; Kieda, C. A.; Devine, R. F.; Current, V.; Schaefers, Thomas

doi:10.1080/00032717908059758

Cited by 4 publications

(1 citation statement)

References 3 publications

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“…Additional peaks, identified as long-chain alkanes, were presumed to originate from the substrate. It has been demonstrated that a number of organic contaminants, including long--chain alkanes, may be derived from paper--based sources [50]. The presence, though not the identity, of contaminants in fingermark samples derived from extraction from porous substrates has been previously reported [15].…”

Section: Exogenous Contaminantsmentioning

confidence: 99%

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

Frick

Chidlow

Lewis

et al. 2015

Forensic Science International

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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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Section: Exogenous Contaminantsmentioning

confidence: 99%