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dc.contributor.author
Alarcón, Francis
dc.contributor.author
Báez, María E.
dc.contributor.author
Bravo, Manuel
dc.contributor.author
Richter, Pablo
dc.contributor.author
Escandar, Graciela Monica
dc.contributor.author
Olivieri, Alejandro Cesar
dc.contributor.author
Fuentes, Edwar
dc.date.available
2016-06-02T18:49:08Z
dc.date.issued
2013-01
dc.identifier.citation
Alarcón, Francis; Báez, María E.; Bravo, Manuel; Richter, Pablo; Escandar, Graciela Monica; et al.; 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; Elsevier; Talanta; 103; 1-2013; 361-370
dc.identifier.issn
0039-9140
dc.identifier.uri
http://hdl.handle.net/11336/6020
dc.description.abstract
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.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.subject
Química Analítica
dc.subject
Quimiometría
dc.subject.classification
Química Analítica
dc.subject.classification
Ciencias Químicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2016-06-01T13:35:24Z
dc.journal.volume
103
dc.journal.pagination
361-370
dc.journal.pais
Países Bajos
dc.journal.ciudad
Amsterdam
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 Catolica de Valparaiso; 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 Monica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Rosario. Instituto de Química Rosario; Argentina
dc.description.fil
Fil: Olivieri, Alejandro Cesar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Rosario. Instituto de Química Rosario; Argentina
dc.description.fil
Fil: Fuentes, Edwar. Universidad de Chile. Facultad de Ciencias Químicas y Farmacéuticas. Departamento de Química Inorgánica y Analítica; Chile
dc.journal.title
Talanta
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0039914012009216
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.talanta.2012.10.080
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.talanta.2012.10.080
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