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Journal of Forensic Chemistry and Toxicology

Volume  5, Issue 1, January-June 2019, Pages 11-15
 

Original Article

Depletion Studies on Different Fluorescent Powder Compositions

Smily 1, Gurvinder S. Sodhi 2, Sanjiv Kumar 3

1 Volunteer, Wildlife Crime Control Bureau (Ministry of environment, forest and climate change) IInd Floor, Trikoot-I, Bhikajicama Place, New Delhi 110066, India. 2 Forensic Science Unit, S.G.T.B. Khalsa College, University of Delhi, Delhi 110007, India. 3 School of Sciences, Department of Chemistry, Indira Gandhi National Open University, Maidan Garhi, New Delhi 110068, India.

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DOI: http://dx.doi.org/10.21088/jfct.2454.9363.5119.2

Abstract

A depletion series was used to evaluate the relative sensitivity of a number of fluorescent powder compositions on a non porous surface. A set of exemplar finger impressions of one particular finger successively impinged on to aluminium foil without recharging the sweat secretions was considered in this investigation. Amongst the studied fluorescent dye based compositions, Rhodamine B and Fluorescein based compositions were adjudged to give best results in terms of ridge clarity of depletion marks.

 


Keywords : Fluorescent powder; Depletion series; Fingerprint; Sensitivity.
Corresponding Author : Smily, Volunteer