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dc.contributor.authorBowen, Richard D.*
dc.contributor.authorEdwards, Howell G.M.*
dc.contributor.authorJorge Villar, Susana E.*
dc.contributor.authorKarapanayiotis, Thanassis*
dc.date.accessioned2009-07-28T13:02:11Z
dc.date.available2009-07-28T13:02:11Z
dc.date.issued2004
dc.identifier.citationKarapanayiotis T, Jorge-Villar SE, Bowen RD and Edwards HGM (2004) The Analyst. 129(7): 613-618.
dc.identifier.urihttp://hdl.handle.net/10454/3179
dc.descriptionNo
dc.description.abstractThe Raman and electron impact mass spectra of synthetic indigo and its four 6,6'-dihalogeno analogues are reported and discussed. The influence of varying the halogen on these Raman spectra is considered. Particular emphasis is laid on distinguishing indigo from 6,6'-dibromoindigo and differentiating between the dihalogenocompounds, so as to develop protocols for determining whether artefacts are coloured with dyes of marine or terrestrial origin and whether such artefacts are dyed with genuine Tyrian Purple or with dihalogenoindigo substitutes that do not contain bromine. The value of even low resolution electron impact mass spectrometry in a forensic context as a means of identifying authentic 6,6'-dibromoindigo and distinguishing it from its dihalogenoanalogues is emphasised.
dc.language.isoen
dc.subjectBromine
dc.subjectHalogen
dc.subjectForensic science
dc.subjectMass spectrometry
dc.subjectElectron spectrometry
dc.subjectLow resolution
dc.subjectElectron impact
dc.subjectRaman spectrometry
dc.subjectDyes
dc.subjectArtefact
dc.titleRaman Spectroscopic and structural studies of indigo and its four 6,6'-Dihalogeno analogues
dc.status.refereedYes
dc.typeArticle
dc.type.versionNo full-text in the repository
dc.identifier.doihttps://doi.org/10.1039/b401798f
dc.openaccess.statusclosedAccess


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