Chemical investigations into the lipid fraction of latent fingermark residue
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The lipid fraction of latent fingermark residue encompasses a number of compounds crucial to fingermark detection on wetted porous substrates. This thesis describes investigations into the detection and chemical analysis of the lipid fraction of latent fingermarks. Two novel reagents for fingermark detection were developed from lipophilic histological stains. Chemical analysis of fingermark lipids found insufficient variation to discriminate between individuals or donor traits, however significant differences were observed as a function of sample age.
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Fritz, Patrick; Van Bronswijk, Wilhelm; Lepkova, Katerina; Lewis, Simon; Lim, K.; Martin, D.; Puskar, L. (2013)Synchrotron-infrared microscopy provides a non-destructive technique to investigate the chemical composition of latent fingermarks in-situ. The high spatial resolution and brightness of the synchrotron source also lends ...
Monitoring compositional changes of the lipid fraction of fingermark residues deposited on paper during storageFrick, Amanda; Chidlow, Geoff; Goodpaster, J.; Lewis, Simon; Van Bronswijk, Wilhelm (2016)Characterising the changes in fingermark composition as a function of time is of great value for improving fingermark detection capabilities by understanding the processes and circumstances under which target compounds ...
Investigations into the initial composition of latent fingermark lipids by gas chromatography-mass spectrometryFrick, Amanda; Chidlow, Geoff; Lewis, Simon; Van Bronswijk, Wilhelm (2015)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 ...