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Feasibility of the determination of polycyclic aromatic hydrocarbons in edible oils via unfolded partial least-squares/residual bilinearization and parallel factor analysis of fluorescence excitation emission matrices

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dc.citation.titleTalanta
dc.citation.volume103
dc.creatorAlarcón, Francis
dc.creatorBáez, María E.
dc.creatorBravo, Manuel
dc.creatorRichter, Pablo
dc.creatorEscandar, Graciela Mónica
dc.creatorOlivieri, Alejandro César
dc.creatorFuentes, Edwar
dc.date.accessioned2018-10-10T14:51:11Z
dc.date.available2018-10-10T14:51:11Z
dc.date.issued2013-01-15
dc.descriptionThe possibility of simultaneously determining seven concerned heavy polycyclic aromatic hydrocarbons (PAHs) of the US-EPA priority pollutant list, in extra virgin olive and sunflower oils was examined using unfolded partial least-squares with residual bilinearization (U-PLS/RBL) and parallel factor analysis (PARAFAC). Both of these methods were applied to fluorescence excitation emission matrices. The compounds studied were benzo[a]anthracene, benzo[b]fluoranthene, benzo[k]fluoranthene, benzo[a]pyrene, dibenz[a,h]anthracene, benzo[g,h,i]perylene and indeno[1,2,3-c,d]-pyrene. The analysis was performed using fluorescence spectroscopy after a microwave assisted liquid-liquid extraction and solid-phase extraction on silica. The U-PLS/RBL algorithm exhibited the best performance for resolving the heavy PAH mixture in the presence of both the highly complex oil matrix and other unpredicted PAHs of the US-EPA list. The obtained limit of detection for the proposed method ranged from 0.07 to 2 μg kg(-1). The predicted U-PLS/RBL concentrations were satisfactorily compared with those obtained using high-performance liquid chromatography with fluorescence detection. A simple analysis with a considerable reduction in time and solvent consumption in comparison with chromatography are the principal advantages of the proposed method.es
dc.description.filFil: Alarcón, Francis. Universidad de Chile. Facultad de Ciencias Químicas y Farmacéuticas. Departamento de Química Inorgánica y Analítica; Chile.
dc.description.filFil: Báez, María E. Universidad de Chile. Facultad de Ciencias Químicas y Farmacéuticas. Departamento de Química Inorgánica y Analítica; Chile.
dc.description.filFil: Bravo, Manuel. Pontificia Universidad Católica de Valparaíso. Facultad de Ciencias. Instituto de Química. Laboratorio de Química Analítica y Ambiental; Chile.
dc.description.filFil: Richter, Pablo. Universidad de Chile. Facultad de Ciencias Químicas y Farmacéuticas. Departamento de Química Inorgánica y Analítica; Chile.
dc.description.filFil: Escandar, Graciela Mónica. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Instituto de Química Rosario (IQUIR-CONICET); Argentina.
dc.description.filFil: Olivieri, Alejandro César. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Instituto de Química Rosario (IQUIR-CONICET); Argentina.
dc.description.filFil: Fuentes, Edwar. Universidad de Chile. Facultad de Ciencias Químicas y Farmacéuticas. Departamento de Química Inorgánica y Analítica; Chile.
dc.description.sponsorshipFondecyt: Project 1110114es
dc.description.sponsorshipCONICYTes
dc.formatapplication/pdf
dc.format.extent361-370
dc.identifier.issn1873-3573
dc.identifier.urihttp://hdl.handle.net/2133/13110
dc.language.isoenges
dc.publisherElsevieres
dc.relation.publisherversionhttp://dx.doi.org/10.1016/j.talanta.2012.10.080es
dc.rightsopenAccesses
dc.rights.holderAlarcón, Francises
dc.rights.holderBáez, María E.es
dc.rights.holderBravo, Manueles
dc.rights.holderRichter, Pabloes
dc.rights.holderEscandar, Graciela Mónicaes
dc.rights.holderOlivieri, Alejandro Césares
dc.rights.holderFuentes, Edwares
dc.rights.holderUniversidad Nacional de Rosarioes
dc.rights.holderUniversidad de Chilees
dc.rights.holderPontificia Universidad Católica de Valparaísoes
dc.rights.holderElsevieres
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/2.5/ar/*
dc.subjectPolycyclic Aromatic Hydrocarbonses
dc.subjectEdible Oilses
dc.subjectFluorescence Excitation-emission Matriceses
dc.subjectMultivariate Calibrationes
dc.titleFeasibility of the determination of polycyclic aromatic hydrocarbons in edible oils via unfolded partial least-squares/residual bilinearization and parallel factor analysis of fluorescence excitation emission matriceses

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