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.creator Alarcón, Francis
dc.creator Báez, María E.
dc.creator Bravo, Manuel
dc.creator Richter, Pablo
dc.creator Escandar, Graciela Mónica
dc.creator Olivieri, Alejandro César
dc.creator Fuentes, Edwar
dc.date.accessioned 2018-10-10T14:51:11Z
dc.date.available 2018-10-10T14:51:11Z
dc.date.issued 2013-01-15
dc.identifier.issn 1873-3573
dc.identifier.uri http://hdl.handle.net/2133/13110
dc.description The 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.sponsorship Fondecyt: Project 1110114 es
dc.description.sponsorship CONICYT es
dc.format application/pdf
dc.format.extent 361-370
dc.language.iso eng es
dc.publisher Elsevier es
dc.rights openAccess es
dc.rights.uri http://creativecommons.org/licenses/by-nc-sa/2.5/ar/ *
dc.subject Polycyclic Aromatic Hydrocarbons es
dc.subject Edible Oils es
dc.subject Fluorescence Excitation-emission Matrices es
dc.subject Multivariate Calibration es
dc.title 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 es
dc.rights.holder Alarcón, Francis es
dc.rights.holder Báez, María E. es
dc.rights.holder Bravo, Manuel es
dc.rights.holder Richter, Pablo es
dc.rights.holder Escandar, Graciela Mónica es
dc.rights.holder Olivieri, Alejandro César es
dc.rights.holder Fuentes, Edwar es
dc.rights.holder Universidad Nacional de Rosario es
dc.rights.holder Universidad de Chile es
dc.rights.holder Pontificia Universidad Católica de Valparaíso es
dc.rights.holder Elsevier es
dc.relation.publisherversion http://dx.doi.org/10.1016/j.talanta.2012.10.080 es
dc.citation.title Talanta
dc.citation.volume 103
dc.description.fil Fil: Alarcón, Francis. Universidad de Chile. Facultad de Ciencias Químicas y Farmacéuticas. Departamento de Química Inorgánica y Analítica; Chile.
dc.description.fil Fil: Báez, María E. Universidad de Chile. Facultad de Ciencias Químicas y Farmacéuticas. Departamento de Química Inorgánica y Analítica; Chile.
dc.description.fil Fil: Bravo, Manuel. Pontificia Universidad Católica de Valparaíso. Facultad de Ciencias. Instituto de Química. Laboratorio de Química Analítica y Ambiental; Chile.
dc.description.fil Fil: Richter, Pablo. Universidad de Chile. Facultad de Ciencias Químicas y Farmacéuticas. Departamento de Química Inorgánica y Analítica; Chile.
dc.description.fil Fil: Escandar, Graciela Mónica. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Instituto de Química Rosario (IQUIR-CONICET); Argentina.
dc.description.fil Fil: Olivieri, Alejandro César. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Instituto de Química Rosario (IQUIR-CONICET); Argentina.
dc.description.fil Fil: Fuentes, Edwar. Universidad de Chile. Facultad de Ciencias Químicas y Farmacéuticas. Departamento de Química Inorgánica y Analítica; Chile.


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