Assessing phosphomolybdic acid as a fingermark enhancement reagent

Journal article


Davis, LWL, Bleay, SM and Kelly, PF (2018). Assessing phosphomolybdic acid as a fingermark enhancement reagent. Journal of Forensic Identification. 68 (2), pp. 257-280.
AuthorsDavis, LWL, Bleay, SM and Kelly, PF
Abstract

© 2018 International Association for Identification. All rights reserved. The efficacy of an ethanolic solution of phosphomolybdic acid (PMA) was investigated as a latent fingermark visualization 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 that are used for the development of fingermarks on porous substrates (e.g., ninhydrin and 1,8 diazafluoren-9-one), PMA stains a range of other compounds that are found in fingermark deposits, including lipids. The lysochrome diazo dye Oil Red O (ORO) was used for comparative purposes because of its application in staining some of the same components of fingermark residues for which PMA would be proposed. Initial results indicate that PMA is comparable to ORO at developing fingermarks on porous surfaces and may also have applications on nonporous surfaces.

Year2018
JournalJournal of Forensic Identification
Journal citation68 (2), pp. 257-280
ISSN0895-173X
Publication dates
Print01 Apr 2018
Publication process dates
Deposited13 Apr 2019
Accepted27 Jan 2018
Accepted author manuscript
License
CC BY 4.0
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https://openresearch.lsbu.ac.uk/item/86v81

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