Luminescent Visualization of Latent Fingerprints by Direct Reaction with a Lanthanide Shift Reagent

    Volume 46, Issue 6 (November 2001)

    ISSN: 0022-1198

    CODEN: JFSOAD

    Page Count: 10


    Caldwell, JP
    University of Waikato, Hamilton,

    Kim, ND
    University of Waikato, Hamilton,

    Henderson, W
    University of Waikato, Hamilton,

    (Received 6 October 2000; accepted 2 February 2001)

    Abstract

    The utilization of the lanthanide shift reagent tris (6,6,7,7,8,8,8-heptafluoro-2,2-dimethyl-3,5-octanedionato) europium (III) [Eu(fod)3] as a simple one-step reagent for the luminescent visualization of latent fingerprints has been investigated. UV excitation of Eu(fod)3-treated prints, achieved by using a hand-held UV lamp or a Polilight®, results in an orange emission at 614 nm. Time-resolved imaging is not required for visualization. Visualization of latent fingerprints on paper under the conditions used, although good, was found to be inferior to that obtained by standard DFO (1,8-diazafluoren-9-one) treatment, whereas visualization of prints obtained on aluminum drink cans and galvanized iron proved superior to that obtained by Superglue/panacryl treatment. Eu(fod)3 treatment can also be used first without compromising subsequent ninhydrin or DFO treatment, making it a “nothing-to-lose” reagent.


    Paper ID: JFS15154J

    DOI: 10.1520/JFS15154J

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    Title Luminescent Visualization of Latent Fingerprints by Direct Reaction with a Lanthanide Shift Reagent
    Symposium , 0000-00-00
    Committee E30