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dc.contributor.author Alvey, DC
dc.contributor.author Morton, K
dc.contributor.author Harmon, RS
dc.contributor.author Gottfried, JL
dc.contributor.author Remus, JJ
dc.contributor.author Collins, LM
dc.contributor.author Wise, MA
dc.date.accessioned 2011-06-21T17:27:38Z
dc.date.issued 2010-05-01
dc.identifier.citation Applied Optics, 2010, 49 (13)
dc.identifier.issn 1559-128X
dc.identifier.uri http://hdl.handle.net/10161/4202
dc.description.abstract Laser-induced breakdown spectroscopy (LIBS) is an analytical technique real-time geochemical analysis that is being developed for portable use outside of the laboratory. In this study, statistical signal processing and classification techniques were applied to single-shot, broadband LIBS spectra, comprising measured plasma light intensities between 200 and 960 nm, for a suite of 157 garnets of different composition from 92 locations worldwide. Partial least squares discriminant analysis was applied to sets of 25 LIBS spectra for each garnet sample and used to classify the garnet samples based on composition and geographic origin. Careful consideration was given to the cross-validation procedure to ensure that the classification algorithm is robust to unseen data. The results indicate that broadband LIBS analysis can be used to discriminate garnets of different composition and has the potential to discern geographic origin. © 2010.
dc.language.iso en_US en_US
dc.relation.ispartof Applied Optics
dc.relation.isversionof 10.1364/AO.49.00C168
dc.title Laser-induced breakdown spectroscopy-based geochemical fingerprinting for the rapid analysis and discrimination of minerals: The example of garnet
dc.title.alternative en_US
dc.type Journal Article
dc.description.version Version of Record en_US
duke.date.pubdate 2010-5-1 en_US
duke.description.endpage C180 en_US
duke.description.issue 13 en_US
duke.description.startpage C168 en_US
duke.description.volume 49 en_US
dc.relation.journal Applied Optics en_US
pubs.issue 13
pubs.organisational-group /Duke
pubs.organisational-group /Duke/Institutes and Provost's Academic Units
pubs.organisational-group /Duke/Institutes and Provost's Academic Units/Initiatives
pubs.organisational-group /Duke/Institutes and Provost's Academic Units/Initiatives/Energy Initiative
pubs.organisational-group /Duke/Institutes and Provost's Academic Units/University Institutes and Centers
pubs.organisational-group /Duke/Institutes and Provost's Academic Units/University Institutes and Centers/Duke Institute for Brain Sciences
pubs.organisational-group /Duke/Pratt School of Engineering
pubs.organisational-group /Duke/Pratt School of Engineering/Biomedical Engineering
pubs.organisational-group /Duke/Pratt School of Engineering/Electrical and Computer Engineering
pubs.organisational-group /Duke/Staff
pubs.publication-status Published
pubs.volume 49
dc.identifier.eissn 1539-4522

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