Evaluation of Raman spectroscopy for the analysis of colored fibers: A collaborative study

Massonnet, G; Buzzini, P; Jochem, G; Stauber, M; Coyle, T; Roux, C; Thomas, J; Leijenhorst, H; Van Zanten, Z; Wiggins, K; Russell, C; Chabli, S; Rosengarten, A

Evaluation of Raman spectroscopy for the analysis of colored fibers: A collaborative study

Massonnet, G Buzzini, P Jochem, G Stauber, M Coyle, T Roux, C

Thomas, J Leijenhorst, H Van Zanten, Z Wiggins, K Russell, C Chabli, S Rosengarten, A

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Publication Type:: Journal Article
Citation:: Journal of Forensic Sciences, 2005, 50 (5), pp. 1028 - 1038
Issue Date:: 2005-09-01

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Field	Value	Language
dc.contributor.author	Massonnet, G	en_US
dc.contributor.author	Buzzini, P	en_US
dc.contributor.author	Jochem, G	en_US
dc.contributor.author	Stauber, M	en_US
dc.contributor.author	Coyle, T	en_US
dc.contributor.author	Roux, C https://orcid.org/0000-0003-3610-420X	en_US
dc.contributor.author	Thomas, J	en_US
dc.contributor.author	Leijenhorst, H	en_US
dc.contributor.author	Van Zanten, Z	en_US
dc.contributor.author	Wiggins, K	en_US
dc.contributor.author	Russell, C	en_US
dc.contributor.author	Chabli, S	en_US
dc.contributor.author	Rosengarten, A	en_US
dc.date.issued	2005-09-01	en_US
dc.identifier.citation	Journal of Forensic Sciences, 2005, 50 (5), pp. 1028 - 1038	en_US
dc.identifier.issn	0022-1198	en_US
dc.identifier.uri	http://hdl.handle.net/10453/3544
dc.description.abstract	A collaborative study on Raman spectroscopy was carried out by members of the ENFSI (European Network of Forensic Science Institutes) European Fibres Group (EFG) on three dyed fibers: two red acrylics and one red wool. Raman instruments from six different manufacturers were tested as well as nine different laser wavelengths ranging from blue (λ = 458 nm) to near infrared-NIR (λ = 1064 nm). This represents the largest comparison study of Raman analytical parameters carried out on identical fiber samples. For the chosen fiber and dye samples, red lasers (λ = 633 and 685 nm) gave the poorest spectral quality whereas blue (458 nm), green (514 nm) and near infrared lasers (785, 830 and 1064 nm) provided average results. Blue (488 nm) and green lasers (532 nm) globally gave the best quality spectra. Fluorescence problems were often encountered with some of the excitation wavelengths and therefore a flexible Raman instrument equipped with different lasers can be recommended to measure forensic fiber samples. The instrument should also be equipped with a Raman microscope in order to be able to focus on a single fiber. This study shows that Raman spectroscopy usually enables the identification of the main dye present in a colored fiber; however, minor dye components are much more difficult to detect. SERRS (Surface Enhanced Resonance Raman Scattering) techniques give an improvement of the dye's spectral intensity but no spectral improvement was observed for the two red acrylic and red wool fibers tested. Copyright © 2005 by ASTM International.	en_US
dc.relation.ispartof	Journal of Forensic Sciences	en_US
dc.subject.classification	Legal & Forensic Medicine	en_US
dc.title	Evaluation of Raman spectroscopy for the analysis of colored fibers: A collaborative study	en_US
dc.type	Journal Article
utslib.citation.volume	5	en_US
utslib.citation.volume	50	en_US
utslib.for	0399 Other Chemical Sciences	en_US
utslib.for	0699 Other Biological Sciences	en_US
utslib.for	1103 Clinical Sciences	en_US
dc.location.activity	United States
pubs.embargo.period	Not known	en_US
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 Mathematical and Physical Sciences
pubs.organisational-group	/University of Technology Sydney/Strength - CFS - Centre for Forensic Science
utslib.copyright.status	closed_access
pubs.issue	5	en_US
pubs.publication-status	Published	en_US
pubs.volume	50	en_US

Abstract:

A collaborative study on Raman spectroscopy was carried out by members of the ENFSI (European Network of Forensic Science Institutes) European Fibres Group (EFG) on three dyed fibers: two red acrylics and one red wool. Raman instruments from six different manufacturers were tested as well as nine different laser wavelengths ranging from blue (λ = 458 nm) to near infrared-NIR (λ = 1064 nm). This represents the largest comparison study of Raman analytical parameters carried out on identical fiber samples. For the chosen fiber and dye samples, red lasers (λ = 633 and 685 nm) gave the poorest spectral quality whereas blue (458 nm), green (514 nm) and near infrared lasers (785, 830 and 1064 nm) provided average results. Blue (488 nm) and green lasers (532 nm) globally gave the best quality spectra. Fluorescence problems were often encountered with some of the excitation wavelengths and therefore a flexible Raman instrument equipped with different lasers can be recommended to measure forensic fiber samples. The instrument should also be equipped with a Raman microscope in order to be able to focus on a single fiber. This study shows that Raman spectroscopy usually enables the identification of the main dye present in a colored fiber; however, minor dye components are much more difficult to detect. SERRS (Surface Enhanced Resonance Raman Scattering) techniques give an improvement of the dye's spectral intensity but no spectral improvement was observed for the two red acrylic and red wool fibers tested. Copyright © 2005 by ASTM International.

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