La Révélation des Traces Papillaires sur les Douilles par les Techniques de<i>Etching</i>et de<i>Blueing</i>et Comparaison avec la Déposition Multimétallique

Schütz, F.; Bonfanti, M.; Champod, Christophe

doi:10.1080/00085030.2000.10757505

Cited by 5 publications

(2 citation statements)

References 6 publications

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“…The performance of ninhydrin with regard to the detection of fingerprints was slightly better than that of benzo[f]ninhydrin (111). Etching and blueing processes, as well as multimetal deposition, have been used to reveal fingermarks on cartridge cases (112). The development of a one-step fluorescent lipid reagent that involves europium chelates has been studied as a method to detect latent fingerprints (113).…”

Section: Trace Evidencementioning

confidence: 99%

Forensic Science

Brettell¹,

Inman

Rudin

et al. 2001

Anal. Chem.

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Section: Trace Evidencementioning

confidence: 99%

Forensic Science

Brettell¹,

Inman

Rudin

et al. 2001

Anal. Chem.

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“…In addition, many aqueous electroplating solutions and redox reagents have been previously employed to react electrochemically with the metal surface exposed between ridge deposits. [33][34][35][36][37][38] In this work we explore the experimental details to gure out the optimal conditions for achieving a satisfactory ECL enhancement of LFPs on metal surfaces. The widely used Ru(bpy) 3 2+ -TPrA ECL system was employed.…”

Section: Introductionmentioning

confidence: 99%

Non-destructive enhancement of latent fingerprints on stainless steel surfaces by electrochemiluminescence

et al. 2013

Analyst

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Visualization and detection of latent fingerprints (LFPs) on metal surfaces are of highly practical importance, e.g., in identifying gun cartridges. We report herein the visualization of LFPs on stainless steel surfaces by electrochemiluminescence (ECL). Since organic residues, such as fatty acids, in the fingerprint deposit make the underlying surface electrochemically inert or less active, an ECL reaction occurs only on the metal portions untouched by the fingertip, hence generating a negative image of the fingerprint. The popular ECL reaction solution, consisting of ruthenium(ii) tris(2,2'-bipyridyl) and tri-n-propylamine, was used for this imaging purpose. Factors, including the applied potential and the concentration of ECL luminophore, as well as the stability of ECL negative images, were investigated to achieve a satisfactory visualization enhancement. This imaging approach is simple, rapid, non-invasive, and no pre-treatment either on the background or on the fingerprint itself is needed. It constitutes a powerful tool for visualizing LFPs on metal surfaces. This method was also demonstrated to be suitable for enhancing LFPs collected from various surfaces.

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