Journal Published Online: 01 November 2000
Volume 45, Issue 6

A New Visibly—Excited Fluorescent Component in Latent Fingerprint Residue Induced by Gaseous Electrical Discharge

CODEN: JFSCAS

Abstract

A technique that exposes fingerprint residue to a gaseous electrical discharge in nitrogen followed by treatment with ammonium hydrogen carbonate vapors to produce fluorescence is investigated. Particular attention is made to fluorescence observed via laser illumination at 514 nm. Insight into the nature of the fluorescent components is achieved through the use of thin-layer chromatography (TLC) of fingerprint residue. Results reported indicate the fluorescence observed is from previously non-fluorescent fractions of the fingerprint residue, and TLC results point towards lipid derivatives as a possible source of the fluorescence.

Author Information

Davies, LM
The Forensic Science Service, Metropolitan Laboratory, London, UK
Jones, NE
The Forensic Science Service, Metropolitan Laboratory, London, UK
Brennan, JS
The Forensic Science Service, Metropolitan Laboratory, London, UK
Bramble, SK
The Forensic Science Service, Metropolitan Laboratory, London, UK
Pages: 5
Price: $25.00
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Stock #: JFS14882J
ISSN: 0022-1198
DOI: 10.1520/JFS14882J