The effect of zinc chloride, humidity and the substrate on the reaction of 1,2-indanedione-zinc with amino acids in latent fingermark secretions.

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dc.contributor.author Spindler, X
dc.contributor.author Shimmon, R
dc.contributor.author Roux, C
dc.contributor.author Lennard, C
dc.date.accessioned 2012-02-02T05:27:26Z
dc.date.issued 2011-10
dc.identifier.citation Forensic science international, 2011, 212 (1-3), pp. 150 - 157
dc.identifier.issn 0379-0738
dc.identifier.other C1 en_US
dc.identifier.uri http://hdl.handle.net/10453/14646
dc.description.abstract Anecdotal evidence from forensic practitioners and studies conducted under controlled conditions have indicated that the reaction between 1,2-indanedione and the amino acids present in latent fingermark deposits is highly susceptible to ambient humidity. The addition of catalytic amounts of zinc chloride to the 1,2-indanedione working solution--usually in the order of 1:25 to 1:4 molar ratio (indanedione:zinc)--significantly improves the colour and luminescence of fingermarks treated under dry conditions but appears to have a negligible effect on fingermarks treated in humid environments. The results presented in this paper confirmed that zinc(II) ions added to the 1,2-indanedione working solution act as a Lewis acid catalyst, stabilising a key intermediate during a rate-limiting hydrolysis step. Furthermore, studying the reaction using a chromatography-grade cellulose substrate method previously reported confirmed that cellulose substrates play a major role in facilitating the indanedione-amino acid reaction by acting as a surface catalyst in the early stages of the reaction and by directing the formation of the desired luminescent product (Joullié's Pink).
dc.format Print-Electronic
dc.language eng
dc.relation.isbasedon 10.1016/j.forsciint.2011.06.005
dc.subject Humans, Chlorides, Indans, Zinc Compounds, Amino Acids, Luminescent Measurements, Sensitivity and Specificity, Forensic Medicine, Humidity, Molecular Structure, Indicators and Reagents, Surface Properties, Dermatoglyphics, Structure-Activity Relationship, Amino Acids, Chlorides, Dermatoglyphics, Forensic Medicine, Humans, Humidity, Indans, Indicators and Reagents, Luminescent Measurements, Molecular Structure, Sensitivity and Specificity, Structure-Activity Relationship, Surface Properties, Zinc Compounds, Fingermarks, 1,2-indanedione, Indanedionezinc, Amino acids, Joullie´ s Pink, Legal & Forensic Medicine
dc.subject Humans; Chlorides; Indans; Zinc Compounds; Amino Acids; Luminescent Measurements; Sensitivity and Specificity; Forensic Medicine; Humidity; Molecular Structure; Indicators and Reagents; Surface Properties; Dermatoglyphics; Structure-Activity Relationship; Amino Acids; Chlorides; Dermatoglyphics; Forensic Medicine; Humans; Humidity; Indans; Indicators and Reagents; Luminescent Measurements; Molecular Structure; Sensitivity and Specificity; Structure-Activity Relationship; Surface Properties; Zinc Compounds; Fingermarks, 1,2-indanedione, Indanedionezinc, Amino acids, Joullie´ s Pink; Legal & Forensic Medicine
dc.title The effect of zinc chloride, humidity and the substrate on the reaction of 1,2-indanedione-zinc with amino acids in latent fingermark secretions.
dc.type Journal Article
dc.parent Forensic science international
dc.journal.volume 1-3
dc.journal.volume 212
dc.journal.number 1-3 en_US
dc.publocation Clare, Ireland en_US
dc.identifier.startpage 150 en_US
dc.identifier.endpage 157 en_US
dc.cauo.name SCI.Chemistry and Forensic Sciences en_US
dc.conference Verified OK en_US
dc.for 039902 Forensic Chemistry
dc.personcode 102605 en_US
dc.personcode 980366 en_US
dc.personcode 960382 en_US
dc.personcode 0000016451 en_US
dc.percentage 100 en_US
dc.classification.name Forensic Chemistry en_US
dc.classification.type FOR-08 en_US
dc.edition en_US
dc.custom en_US
dc.date.activity en_US
dc.location.activity en_US
dc.description.keywords Fingermarks, 1,2-indanedione, Indanedione?zinc, Amino acids, Joullie' ?s Pink en_US
dc.description.keywords Fingermarks, 1,2-indanedione, Indanedionezinc, Amino acids, Joullie´ s Pink
dc.description.keywords Humans
dc.description.keywords Chlorides
dc.description.keywords Zinc Compounds
dc.description.keywords Indans
dc.description.keywords Amino Acids
dc.description.keywords Indicators and Reagents
dc.description.keywords Luminescent Measurements
dc.description.keywords Dermatoglyphics
dc.description.keywords Sensitivity and Specificity
dc.description.keywords Forensic Medicine
dc.description.keywords Humidity
dc.description.keywords Molecular Structure
dc.description.keywords Structure-Activity Relationship
dc.description.keywords Surface Properties
dc.description.keywords Humans
dc.description.keywords Chlorides
dc.description.keywords Indans
dc.description.keywords Zinc Compounds
dc.description.keywords Amino Acids
dc.description.keywords Luminescent Measurements
dc.description.keywords Sensitivity and Specificity
dc.description.keywords Forensic Medicine
dc.description.keywords Humidity
dc.description.keywords Molecular Structure
dc.description.keywords Indicators and Reagents
dc.description.keywords Surface Properties
dc.description.keywords Dermatoglyphics
dc.description.keywords Structure-Activity Relationship
dc.staffid 0000016451 en_US
pubs.embargo.period Not known
pubs.organisational-group /University of Technology Sydney
pubs.organisational-group /University of Technology Sydney/Faculty of Science
pubs.organisational-group /University of Technology Sydney/Faculty of Science/School of Chemistry and Forensic Science
pubs.organisational-group /University of Technology Sydney/Strength - Forensic Science


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