Chemical development of latent fingertips: 1,2-indanedoine has come of age

S. Wiesner; E. Springer; Y. Sasson; J. Almog

doi:10.1520/jfs15102j

Chemical development of latent fingertips: 1,2-indanedoine has come of age

S. Wiesner, E. Springer, Y. Sasson, J. Almog^*

^*Corresponding author for this work

Institute of Chemistry

Research output: Contribution to journal › Article › peer-review

75 Scopus citations

Abstract

The performance of 1,2-indanedione as a latent fingerprint reagent on some types of paper was found to exceed that of DFO, the leading fluorogenic fingerprint reagent. It even exceeds the performance of the sequence, DFO, followed by ninhydrin. No new prints could be observed when ninhydrin was applied after indanedione. On a large number of actual exhibits (used checks) indanedione developed 46% more identifiable prints than the sequence DFO-ninhydrin. A standard procedure for fingerprint development by indanedione is proposed. Best results are obtained with a 0.2% indanedione solution in HFE7100 solvent containing 7% ethyl acetate, but no acetic acid. It can be recommended to start using 1,2-indanedione, which is already commercially available, in actual fingerprint casework.

Original language	English
Pages (from-to)	1082-1084
Number of pages	3
Journal	Journal of Forensic Sciences
Volume	46
Issue number	5
DOIs	https://doi.org/10.1520/jfs15102j
State	Published - 2001

Keywords

1,2-indanedione
1,8-diazafluorene-9-one
Criminalistics
Fingerprint development
Forensic science
Latent
Ninhydrin
Paper

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10.1520/jfs15102j

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title = "Chemical development of latent fingertips: 1,2-indanedoine has come of age",

abstract = "The performance of 1,2-indanedione as a latent fingerprint reagent on some types of paper was found to exceed that of DFO, the leading fluorogenic fingerprint reagent. It even exceeds the performance of the sequence, DFO, followed by ninhydrin. No new prints could be observed when ninhydrin was applied after indanedione. On a large number of actual exhibits (used checks) indanedione developed 46% more identifiable prints than the sequence DFO-ninhydrin. A standard procedure for fingerprint development by indanedione is proposed. Best results are obtained with a 0.2% indanedione solution in HFE7100 solvent containing 7% ethyl acetate, but no acetic acid. It can be recommended to start using 1,2-indanedione, which is already commercially available, in actual fingerprint casework.",

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Chemical development of latent fingertips: 1,2-indanedoine has come of age

Abstract

Keywords

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