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Please use this identifier to cite or link to this item: https://dspace.lboro.ac.uk/2134/32071

Title: Preliminary investigation into the use of phosphomolybdic acid as a fingermark development reagent
Authors: Davis, Lloyd W.L.
Bleay, Stephen M.
Kelly, Paul F.
Issue Date: 2018
Publisher: © The International Association for Identification
Citation: DAVIS, L.W.L., BLEAY, S.M. and KELLY, P.F., 2018. Preliminary investigation into the use of phosphomolybdic acid as a fingermark development reagent. Journal of Forensic Identification, In Press.
Abstract: The efficacy of an ethanolic solution of phosphomolybdic acid (PMA), has been investigated as a latent fingermark visualisation reagent, primarily on porous substrates. After treating samples and exposing them to ultraviolet radiation, the PMA solution was shown to develop fingermarks of high quality. Unlike the common amino acid reagents used for the development of fingermarks on porous substrates, ninhydrin (Nin) and 1,8 Diazafluoren-9-one (DFO), phosphomolybdic acid stains a range of other compounds found within fingermark deposits, including lipids. The lysochrome diazo dye Oil Red O (ORO) was used for comparative purposes due to its application in staining some of the same components of fingermark residues that PMA would be proposed for. Initial results indicate that PMA is comparable to ORO at developing fingermarks on porous surfaces and may also have applications on non-porous surfaces.
Description: This paper is in closed access.
Version: Accepted for publication
URI: https://dspace.lboro.ac.uk/2134/32071
Publisher Link: https://www.theiai.org/jfi/jfi_titles.php
ISSN: 0895-173X
Appears in Collections:Closed Access (Chemistry)

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