The Effect of Metal Salt Treatment on the Photoluminescence of DFO-Treated Fingerprints

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dc.contributor.author Ramsay, G. en_US
dc.contributor.author Lennard, C. en_US
dc.contributor.author Roux, C en_US
dc.contributor.author Conn, C. en_US
dc.date.accessioned 2009-11-12T04:43:56Z
dc.date.available 2009-11-12T04:43:56Z
dc.date.issued 2001 en_US
dc.identifier 2004004608 en_US
dc.identifier.citation Conn, C. et al. 2001 'The Effect of Metal Salt Treatment on the Photoluminescence of DFO-Treated Fingerprints', Forensic Science International, vol. 116, no. 2-3, pp. 117-123. en_US
dc.identifier.issn 0379-0738 en_US
dc.identifier.other C1 en_US
dc.identifier.uri http://hdl.handle.net/10453/3243
dc.description.abstract Ninhydrin developed fingerprints can be enhanced by treatment with a zinc or cadmium salt. The resulting fingerprint luminescence has been attributed to the induced coplanarity of the bicyclic indanedione rings of Ruhemann's purple due to complexation with the metal ions. This paper explores whether this effect also occurs in the 1,8-diaza-9-f1uorenone (DFO)- amino acid adduct (I), formed from the reaction of DFO with amino acids. Molecular modeling studies of (I) indicate a relatively small out-of-plane angle of 24°. ¹H NMR studies indicate (I) is asymmetric about the C2 axis in contrast to what has been previously reported. Little, if any, enhancement of luminescence was observed with Zn, Cd, Ru or Eu treated DFO developed latent fingerprints. This lack of enhancement was also borne out by solution luminescence studies. Given this lack of enhancement of luminescence, solutions of (I) and the four metal ions above were analyzed by electrospray mass spectrometry (ESMS). This indicated the formation of predominantly I: I complexes of (I) with both Zn and Cd, and the 2: I complex with ruthenium. No evidence of a Eu complex was found by ESMS. en_US
dc.publisher Elsevier Science Ireland Ltd en_US
dc.relation.isbasedon http://dx.doi.org/10.1016/S0379-0738(00)00358-3 en_US
dc.title The Effect of Metal Salt Treatment on the Photoluminescence of DFO-Treated Fingerprints en_US
dc.parent Forensic Science International en_US
dc.journal.volume 116 en_US
dc.journal.number 2-3 en_US
dc.publocation Ireland en_US
dc.identifier.startpage 117 en_US
dc.identifier.endpage 123 en_US
dc.cauo.name Chemistry, Materials and Forensic Sciences en_US


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