Forensic analysis of bicomponent fibers using infrared chemical imaging

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dc.contributor.author Flynn, K
dc.contributor.author O'Leary, R
dc.contributor.author Roux, C
dc.contributor.author Reedy, BJ
dc.date.accessioned 2009-12-21T02:28:45Z
dc.date.issued 2006-05
dc.identifier.citation Journal of Forensic Sciences, 2006, 51 (3), pp. 586 - 596
dc.identifier.issn 0022-1198
dc.identifier.other C1 en_US
dc.identifier.uri http://hdl.handle.net/10453/3531
dc.description.abstract The application of infrared chemical imaging to the analysis of bicomponent fibers was evaluated. Eleven nominally bicomponent fibers were examined either side-on or in cross-section. In six of the 11 samples, infrared chemical imaging was able to spatially resolve two spectroscopically distinct regions when the fibers were examined side-on. As well as yielding characteristic infrared spectra of each component, the technique also provided images that clearly illustrated the side-by-side configuration of these components in the fiber. In one case it was possible to prepare and image a cross-section of the fiber, but in general the preparation of fiber cross-sections proved very difficult. In five of the 11 samples, the infrared spectra could be used to identify the overall chemical composition of the fibers, according to a published classification scheme, but the fiber components could not be spatially resolved. Difficulties that are inherent to conventional "single-point" infrared spectroscopy, such as interference fringing and sloping baselines, particularly when analyzing acrylic type fibers, were also encountered in the infrared chemical image analysis of bicomponent fibers. A number of infrared sampling techniques were investigated to overcome these problems, and recommendations for the best sampling technique are given. Chemical imaging results were compared with those obtained using conventional fiber microscopy techniques. Copyright © 2006 by American Academy of Forensic Sciences.
dc.language eng
dc.relation.isbasedon 10.1111/j.1556-4029.2006.00116.x
dc.subject Bicomponent fibers, Chemical imaging, Forensic science, FTIR, Hyperspectral imaging, Infrared, forensic science, chemical imaging, bicomponent fibers, infrared, FTIR, hyperspectral imaging, Legal & Forensic Medicine
dc.subject Bicomponent fibers; Chemical imaging; Forensic science; FTIR; Hyperspectral imaging; Infrared; forensic science; chemical imaging; bicomponent fibers; infrared; FTIR; hyperspectral imaging; Legal & Forensic Medicine
dc.title Forensic analysis of bicomponent fibers using infrared chemical imaging
dc.type Journal Article
dc.parent Journal of Forensic Sciences
dc.journal.volume 3
dc.journal.volume 51
dc.journal.number 3 en_US
dc.publocation Oxford, UK en_US
dc.identifier.startpage 586 en_US
dc.identifier.endpage 596 en_US
dc.cauo.name SCI.Chemistry and Forensic Sciences en_US
dc.conference Verified OK en_US
dc.for 0399 Other Chemical Sciences
dc.personcode 99068660 en_US
dc.personcode 0000024524 en_US
dc.personcode 960382 en_US
dc.personcode 000263 en_US
dc.percentage 100 en_US
dc.classification.name Other Chemical Sciences en_US
dc.classification.type FOR-08 en_US
dc.description.keywords forensic science; chemical imaging; bicomponent fibers; infrared; FTIR; hyperspectral imaging en_US
dc.description.keywords Bicomponent fibers
dc.description.keywords Chemical imaging
dc.description.keywords Forensic science
dc.description.keywords FTIR
dc.description.keywords Hyperspectral imaging
dc.description.keywords Infrared
dc.staffid 000263 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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