Kelly_JFI-2018-2-257.pdf (3.32 MB)
Assessing phosphomolybdic acid as a fingermark enhancement reagent
journal contribution
posted on 2018-03-02, 12:47 authored by Lloyd W.L. Davis, Stephen M. Bleay, Paul KellyPaul KellyThe 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.
History
School
- Science
Department
- Chemistry
Published in
Journal of Forensic IdentificationCitation
DAVIS, L.W.L., BLEAY, S.M. and KELLY, P.F., 2018. Assessing phosphomolybdic acid as a fingermark enhancement reagent. Journal of Forensic Identification, 68 (2), pp.257–280.Publisher
© The International Association for IdentificationVersion
- NA (Not Applicable or Unknown)
Publisher statement
This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/Acceptance date
2018-01-30Publication date
2018Notes
This paper was published in the journal Journal of Forensic Identification and the definitive published version is available at https://www.theiai.org/jfi/jfi_titles.phpISSN
0895-173XPublisher version
Language
- en