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dc.contributor.author
Campiglia, Andres D.
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dc.contributor.author
Rex, Mattew
dc.contributor.author
Muñoz De La Peña, Arsenio
dc.contributor.author
Goicoechea, Hector Casimiro
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dc.date.available
2019-02-19T20:43:29Z
dc.date.issued
2016-12
dc.identifier.citation
Campiglia, Andres D.; Rex, Mattew; Muñoz De La Peña, Arsenio; Goicoechea, Hector Casimiro; Excitation-emission matrix fluorescence spectroscopy combined with MCR-ALS as a tool for the forensic analysis of similar and dissimilar sets of textile fiber extracts; Royal Society of Chemistry; Analytical Methods; 8; 47; 12-2016; 8314-8321
dc.identifier.issn
1759-9679
dc.identifier.uri
http://hdl.handle.net/11336/70490
dc.description.abstract
Trace textile fiber evidence is found at numerous crime scenes and plays an important role in linking a suspect to the respective scene. In this work, investigations into the fluorescence of fiber dyes and fibers themselves, as well as a methodology for discriminating between fibers using room temperature fluorescence (RTF) are reported. Initial systematic analysis was conducted on dye standards and extracts taken from fibers colored with the respective dyes of interest. Absorbance, excitation and fluorescence spectra were compared between standards and extracts to determine the optimal area of the fiber to investigate dyes, fluorescent impurities or the whole fiber. High performance liquid chromatography investigations were performed to obtain detailed information on the number of dye and fluorescent components present in extracts. Three-way Excitation Emission Matrix (EEM) data were found to give the greatest amount of spectral information and provide the highest level of discrimination. Successful discrimination between non-similar and similar fibers was achieved with the aid of second order MCR-ALS chemometric analysis. The level of discrimination obtained via RTF-EEM spectroscopy was sufficient to differentiate among two types of visually indistinguishable fibers and among fibers obtained from two separate cloths of the same material and colored with the same dye reagent.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Royal Society of Chemistry
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Fibers
dc.subject
Rtf
dc.subject
Dyes
dc.subject.classification
Otras Ciencias Químicas
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dc.subject.classification
Ciencias Químicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Excitation-emission matrix fluorescence spectroscopy combined with MCR-ALS as a tool for the forensic analysis of similar and dissimilar sets of textile fiber extracts
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2019-02-12T14:29:07Z
dc.journal.volume
8
dc.journal.number
47
dc.journal.pagination
8314-8321
dc.journal.pais
Reino Unido
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dc.journal.ciudad
Cambridge
dc.description.fil
Fil: Campiglia, Andres D.. University of Central Florida; Estados Unidos
dc.description.fil
Fil: Rex, Mattew. University of Central Florida; Estados Unidos
dc.description.fil
Fil: Muñoz De La Peña, Arsenio. Universidad de Extremadura; España
dc.description.fil
Fil: Goicoechea, Hector Casimiro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; Argentina. Universidad Nacional del Litoral. Facultad de Bioquímica y Ciencias Biológicas; Argentina
dc.journal.title
Analytical Methods
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://dx.doi.org/10.1039/c6ay02757a
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://pubs.rsc.org/en/Content/ArticleLanding/2016/AY/C6AY02757A#
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