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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

Authordc.contributor.authorAlarcón, Francis 
Authordc.contributor.authorBáez Contreras, María Estrella es_CL
Authordc.contributor.authorBravo, Manuel es_CL
Authordc.contributor.authorRichter Duk, Pablo es_CL
Authordc.contributor.authorEscandar, Graciela M. es_CL
Authordc.contributor.authorOlivieri, Alejandro C. es_CL
Authordc.contributor.authorFuentes Pérez, Edwar es_CL
Admission datedc.date.accessioned2014-01-23T19:15:36Z
Available datedc.date.available2014-01-23T19:15:36Z
Publication datedc.date.issued2013-06-15
Cita de ítemdc.identifier.citationTalanta 103 (2013) 361–370en_US
Identifierdc.identifier.otherDOI: 10.1016/j.talanta.2012.10.080
Identifierdc.identifier.urihttp://repositorio.uchile.cl/handle/2250/121766
General notedc.descriptionArtículo de publicación ISI.en_US
Abstractdc.description.abstractThe 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 mg 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.en_US
Lenguagedc.language.isoenen_US
Publisherdc.publisherElsevier B.V.en_US
Type of licensedc.rightsAttribution-NonCommercial-NoDerivs 3.0 Chile*
Link to Licensedc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/cl/*
Keywordsdc.subjectPolycyclic aromatic hydrocarbonsen_US
Títulodc.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 matricesen_US
Document typedc.typeArtículo de revistaen_US


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Attribution-NonCommercial-NoDerivs 3.0 Chile
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivs 3.0 Chile