ISSN: 0022-1198
CODEN: JFSCA
Published Online: 1 May 1992
Page Count: 7

5-Methylthio Ninhydrin and Related Compounds: A Novel Class of Fluorogenic Fingerprint Reagents
Frank, A
Division of Identification and Forensic Science (DIFS), Israel National Police,

Hirshfeld, A
Division of Identification and Forensic Science (DIFS), Israel National Police,

Grant, H
Division of Identification and Forensic Science (DIFS), Israel National Police,

Almog, J
Division of Identification and Forensic Science (DIFS), Israel National Police,

Ittah, Y
Visiting scientist, DIFS, Israel National Police,

Harel, Z
Visiting scientist, DIFS, Israel National Police,

(Received 12 July 1991; accepted 26 September 1991)

Abstract

Ninhydrin derivatives bearing sulfur-containing groups at position 5 exhibit excellent properties as fluorogenic fingerprint reagents on paper. Their sensitivity markedly exceeds that of ninhydrin and even that of 5-methoxy ninhydrin. Preliminary experiments indicate it as equal to or better than 1–8-diazafluorene-9-one (DFO). One member of this group, 5-methylthio ninhydrin, has been recently declared an operational fingerprint developer in our laboratory.

Keywords:
criminalistics, fingerprints, ninhydrin

Paper ID: JFS11982J
DOI: 10.1520/JFS11982J
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