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NCJ Number: 156771 Find in a Library
Title: New Europium Chelate as a Fluorescent Dye for Cyanoacrylate Pretreated Fingerprints: EuTTAPhen (Europium ThenoylTrifluoro- Acetone Ortho-Phenanthroline)
Journal: Journal of Forensic Sciences  Volume:40  Issue:4  Dated:(July 1995)  Pages:654-658
Author(s): E R A Lock; W D Mazzella; P Margot
Date Published: 1995
Page Count: 5
Type: Test/Measurement
Format: Article
Language: English
Country: United States of America
Annotation: This paper reports on studies of a proposed new fluorescent dye to enhance fingerprints, using a Europium complex (TEC).
Abstract: EuTTAPhen (Europium ThenoylTrifluoro-Acetone Ortho- Phenanthroline) is a new fluorescent dye for cyanoacrylate pretreated fingerprints that is the outcome of further studies on Europium complexes and especially of the dye proposed by Misner, Wilkinson and Watkin. This new dye has the same spectral properties as the TEC, but a higher luminescence intensity makes it polyvalent and efficient on many surfaces. The formulation is based on petroleum ether instead of methyl ethyl ketone and water. Petroleum ether was chosen for its low cost, availability, low toxicity, low polarity, and high volatility. In addition, the EuTTAPhen dye could easily be mixed with other common cyanoacrylate stains. Preliminary tests on cyanoacrylate pretreated fingerprints showed that a formulation of EuTTAPhen was the most efficient complex for providing the best luminescence intensity of the treated fingerprints, a Stokes shift of 262 nm, and reduced practical drawbacks. 8 figures, 1 table, and 6 references
Main Term(s): Science and Technology
Index Term(s): Fingerprint image quality; Fingerprints
To cite this abstract, use the following link:
http://www.ncjrs.gov/App/publications/abstract.aspx?ID=156771

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