Determination of tributyltin at parts-per-trillion levels in natural waters by second-order multivariate calibration and fluorescence spectroscopy

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dc.citation.titleMicrochemical Journalen
dc.citation.volume106en
dc.creatorOlivieri, Alejandro César
dc.creatorEscandar, Graciela Mónica
dc.creatorBravo, Manuel
dc.creatorAguilar, Luis Felipe
dc.creatorQuiroz, Waldo
dc.date.accessioned2018-06-12T15:11:46Z
dc.date.available2018-06-12T15:11:46Z
dc.date.issued2013-01
dc.descriptionThis work presents a non-sophisticated approach for the trace determination of tributyltin, the most toxic organotin species, in very interfering environments, combining fluorescence measurements of its morin complex and the selectivity of second-order chemometric algorithms. The power of MCR–ALS (multivariate curve resolution/alternating least-squares) to quantify tributyltin through fluorescence excitation–emission matrices in the presence of its main degradation products and of a pool of additional twenty-three metal ions is demonstrated. The applied algorithm successfully faces the challenge of solving the strong overlapping among the spectra of the several sample components. The proposed methodology was applied to tap, river, lagoon and seawater spiked samples, obtaining satisfactory results at ngL −1 levels, after a pre-concentration step on a C18 membrane, demonstrating the analytical potential of the proposed methodology.es
dc.description.filFil: Bravo, Manuel. Pontificia Universidad Católica de Valparaíso. Instituto de Química. Laboratorio de Química Analítica y Ambiental; Chile.es
dc.description.filFil: Aguilar, Luis Felipe. Pontificia Universidad Católica de Valparaíso. Instituto de Química. Laboratorio de Fotofísica y Espectroscopia Molecular; Chile.es
dc.description.filFil: Quiroz, Waldo. Pontificia Universidad Católica de Valparaíso. Instituto de Química. Laboratorio de Química Analítica y Ambiental; Chile.es
dc.description.filFil: Olivieri, Alejandro César. 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.sponsorshipFondo Nacional de Desarrollo Científico y Tecnológico (FONDECYT): Project 11080197es
dc.description.sponsorshipConsejo Nacional de Investigaciones Científicas y Técnicas (CONICET): Project PIP 1950es
dc.description.sponsorshipAgencia Nacional de Promoción Científica y Tecnológica (ANPCyT): Project PICT 2010-0084es
dc.formatapplication/pdf
dc.format.extent95-101en
dc.identifier.issn0026-265X
dc.identifier.urihttp://hdl.handle.net/2133/11443
dc.language.isoenges
dc.publisherElsevieres
dc.relation.publisherversionhttps://www.sciencedirect.com/science/article/pii/S0026265X12001312es
dc.relation.publisherversionhttp://dx.doi.org/10.1016/j.microc.2012.05.013es
dc.rightsopenAccesses
dc.rights.holderOlivieri, Alejandro Césares
dc.rights.holderEscandar, Graciela Mónicaes
dc.rights.holderBravo, Manueles
dc.rights.holderAguilar, Luis Felipees
dc.rights.holderQuiroz, Waldoes
dc.rights.holderPontificia Universidad Católica de Valparaísoes
dc.rights.holderUniversidad Nacional de Rosarioes
dc.rights.holderElsevieres
dc.rights.textAtribución-NoComercial-SinDerivadas 4.0 Internacional (CC BY-NC-ND 4.0)es
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/2.5/ar/*
dc.subjectTributyltines
dc.subjectNatural Sampleses
dc.subjectMultivariate Calibrationes
dc.subjectFluorescence Spectroscopyes
dc.titleDetermination of tributyltin at parts-per-trillion levels in natural waters by second-order multivariate calibration and fluorescence spectroscopyes

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