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Excitation-emission fluorescence-kinetic data obtained by Fenton degradation. Determination of heavy-polycyclic aromatic hydrocarbons by four-way parallel factor analysis

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dc.citation.titleTalanta
dc.citation.volume165
dc.creatorCarabajal, Maira Daniela
dc.creatorArancibia, Juan Alberto
dc.creatorEscandar, Graciela Mónica
dc.date.accessioned2019-04-23T14:04:45Z
dc.date.available2019-04-23T14:04:45Z
dc.date.issued2017-04-01
dc.descriptionFor the first time, a simple and environmentally friendly third-order/four-way calibration was applied for the simultaneous determination of five heavy-polycyclic aromatic hydrocarbons (PAHs) in interfering environments. The kinetic evolution of the Fenton degradation of benzo[a]pyrene, dibenz[a,h]anthracene, benzo[b]fluoranthene, benzo[k]fluoranthene and benz[a]anthracene was followed by recording full excitation-emission fluorescence matrices (EEFMs) of the samples at different reaction times, obtaining third-order EEFM-kinetic (EEFM-K) data. The sensitivity of the method was increased by carrying out the reaction in the presence of methyl-β-cyclodextrin. The four-way parallel factor (PARAFAC) algorithm, which was used for data processing, exploits the second-order advantage, allowing analyte concentrations to be estimated even in the presence of an uncalibrated fluorescent background. The clear superiority of the applied approach in comparison with second-order/three-way calibration performed with unreacting EEFMs is demonstrated, using two sets of samples with foreign compounds with particular spectral profiles. In one of the latter sets, the existence of a third-order advantage was explored and discussed. The feasibility to directly determine parts-per-trillion concentration levels of PAHs after a very simple solid-phase extraction with C18 membranes is established with natural water samples containing uncalibrated constituents.es
dc.description.filFil: Carabajal, Maira Daniela. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Instituto de Química Rosario (IQUIR-CONICET); Argentina.es
dc.description.filFil: Arancibia, Juan Alberto. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Instituto de Química Rosario (IQUIR-CONICET); Argentina.es
dc.description.filFil: Escandar, Graciela Mónica. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Instituto de Química Rosario (IQUIR-CONICET); Argentina.es
dc.description.sponsorshipConsejo Nacional de Investigaciones Científicas y Técnicas (CONICET): Proyecto PIP 0163es
dc.description.sponsorshipUniversidad Nacional de Rosario (UNR): Proyecto BIO 237es
dc.description.sponsorshipAgencia Nacional de Promoción Científica y Tecnológica (ANPCyT): PICT 2013-0136es
dc.formatapplication/pdf
dc.format.extent52-63
dc.identifier.urihttp://hdl.handle.net/2133/14424
dc.language.isoenges
dc.publisherElsevieres
dc.relation.publisherversionhttps://www.sciencedirect.com/science/article/pii/S0039914016309729?via%3Dihub#ack0005es
dc.relation.publisherversionhttp://dx.doi.org/10.1016/j.talanta.2016.12.030es
dc.rightsopenAccesses
dc.rights.holderCarabajal, Maira Danielaes
dc.rights.holderArancibia, Juan Albertoes
dc.rights.holderEscandar, Graciela Mónicaes
dc.rights.holderUniversidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas.es
dc.rights.holderElsevieres
dc.rights.textAtribución-NoComercial-SinDerivadas 4.0 Internacional (CC BY-NC-ND 4.0)es
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/deed.es*
dc.subjectExcitation-emission fluorescence matrix-kinetic dataes
dc.subjectThird-order/four-way calibrationes
dc.subjectThird-order advantagees
dc.subjectFenton reactiones
dc.subjectHeavy-polycyclic aromatic hydrocarbonses
dc.titleExcitation-emission fluorescence-kinetic data obtained by Fenton degradation. Determination of heavy-polycyclic aromatic hydrocarbons by four-way parallel factor analysises

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FBIOyF - Departamento de Química Analítica - Artículos