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dc.contributor.authorMaric, Mark
dc.contributor.authorvan Bronswijk, Wilhelm
dc.contributor.authorLewis, Simon
dc.contributor.authorPitts, K.
dc.contributor.authorMartin, D.
dc.identifier.citationMaric, Mark and van Bronswijk, Wilhelm and Lewis, Simon and Pitts, Kari and Martin, Danielle. 2013. Characterisation of chemical component migration in automotive paint by synchrotron infrared imaging. Forensic Science International. 228 (1-3): pp. 165-169.

Synchrotron infrared chemical imaging was employed to examine and assess the extent of interlayer component migration within multilayer automotive paint samples, with a particular emphasis on the cross-linking additive melamine. Two dimensional infrared chemical images revealed that melamine consistently diffuses in select paint samples from the underlying basecoat into the outermost clear coat layer. Pigments from the basecoat were also found to migrate into the adjoining layers. This is significant as the relative abundance of both melamine and pigments will vary greatly depending upon the region of the layer analysed. This component migration will undoubtedly impact the information gleaned from a questioned sample via library searching software or multivariate statistics. As a result, appropriate analytical protocols will need to be utilised to mitigate the effects of interlayer pigment and melamine diffusion, so as to afford a true representation of the composition of the coating for forensic identification purposes.

dc.publisherElsevier Ireland Ltd
dc.subjecttrace evidence
dc.subjectautomotive paint
dc.subjectinfrared imaging
dc.titleCharacterisation of chemical component migration in automotive paint by synchrotron infrared imaging
dc.typeJournal Article
dcterms.source.titleForensic Science International

NOTICE: This is the author’s version of a work that was accepted for publication in Forensic Science International. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Forensic Science International, Vol. 228, Issues 1-3. (2013). doi: 10.1016/j.forsciint.2013.01.032

curtin.accessStatusOpen access

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