Reagents for the Chemical Development of Latent Fingerprints: Scope and Limitations of Benzo[f]ninhydrin in Comparison to Ninhydrin

Joseph Almog · Vaughn G. Sears · E Springer · DF Hewlett · S Wiesner · Ramy Lidor

34 citations0/0 files storedJournal of Forensic Sciences

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Forensic Fingerprint Detection Methods Cultural Heritage Materials Analysis Biometric Identification and Security

Abstract

Benzo[f]ninhydrin was compared to ninhydrin for fingerprint development on paper. Overall, the performance of ninhydrin on exhibits was slightly better than that of benzo[f]ninhydrin. The significant advantages of the benzo[f]ninhydrin over ninhydrin were the much stronger fluorescence it gave after treatment with zinc salts and a slightly quicker reaction under ambient conditions. This fluorescence is, however, similar to that obtained with other reagents, such as DFO or ninhydrin analogs. These advantages apparently are not sufficient to justify regular usage of benzo[f]ninhydrin, especially when one considers its low solubility and high cost.

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References

1982Reagents for the Chemical Development of Latent Fingerprints: Synthesis and Properties of Some Ninhydrin Analogues 1986Synthesis of Ninhydrin Analogues and Their Application to Fingerprint Development: Preliminary Results 1985Latent Fingerprint Development by Frequency-Doubled Neodymium:Yttrium Aluminum Garnet (Nd:YAG) Laser: Benzo(f)ninhydrin

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