Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.12104/67348
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dc.contributor.authorFrausto-Reyes, C.
dc.contributor.authorMedina-Gutierrez, C.
dc.contributor.authorSato-Berru, R.
dc.contributor.authorSahagun, L.R.
dc.date.accessioned2015-11-19T18:52:06Z-
dc.date.available2015-11-19T18:52:06Z-
dc.date.issued2005
dc.identifier.urihttp://hdl.handle.net/20.500.12104/67348-
dc.description.abstractUsing Raman spectroscopy, with an excitation radiation source of 514.5 nm, and principal component analysis (PCA) was elaborated a method to study qualitatively the ethanol content in tequila samples. This method is based in the OH region profile (water) of the Raman spectra. Also, this method, using the fluorescence background of the Raman spectra, can be used to distinguish silver tequila from aged tequilas. The first three PCs of the Raman spectra, that provide the 99% of the total variance of the data set, were used for the samples classification. The PCA1 and PCA2 are related with the water (or ethanol) content of the sample, whereas the PCA3 is related with the fluorescence background of the Raman spectra. © 2004 Elsevier B.V.
dc.titleQualitative study of ethanol content in tequilas by Raman spectroscopy and principal component analysis
dc.typeArticle
dc.identifier.doi10.1016/j.saa.2004.10.008
dc.relation.ispartofjournalSpectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy
dc.relation.ispartofvolume61
dc.relation.ispartofissue11-dic.
dc.relation.ispartofpage2657
dc.relation.ispartofpage2662
dc.subject.keywordPrincipal component analysis; Raman spectroscopy; Tequila
dc.contributor.affiliationFrausto-Reyes, C., Centro de Investigaciones en Óptica A.C., Unidad Aguascalientes, Fracc. Reserva Loma Bonita, Constitucion 607, Apdo. Postal 507, C.P. 20200 Aguascalientes, Mexico; Medina-Gutiérrez, C., Universidad de Guadalajara, Campus Universitario Los Lagos, Fracc. Paseo de la Montaña, Av. Enrique Diaz de Leon s/n, Lagos de Moreno, C.P. 47460 Jal., Mexico; Sato-Berrú, R., Universidad de Guadalajara, Campus Universitario Los Lagos, Fracc. Paseo de la Montaña, Av. Enrique Diaz de Leon s/n, Lagos de Moreno, C.P. 47460 Jal., Mexico; Sahagún, L.R., Centro de Investigaciones en Óptica A.C., Unidad Aguascalientes, Fracc. Reserva Loma Bonita, Constitucion 607, Apdo. Postal 507, C.P. 20200 Aguascalientes, Mexico
dc.relation.isReferencedByScopus
dc.relation.isReferencedByWOS
dc.identifier.urlhttp://www.scopus.com/inward/record.url?eid=2-s2.0-22844439241&partnerID=40&md5=72b686a998beeda43e83d21fb19a89d1
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