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

This 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 (m...

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Detalles Bibliográficos
Autores principales: Olivieri, Alejandro César, Escandar, Graciela Mónica, Bravo, Manuel, Aguilar, Luis Felipe, Quiroz, Waldo
Lenguaje:Inglés
Publicado: Elsevier 2018
Materias:
Tributyltin
Natural Samples
Multivariate Calibration
Fluorescence Spectroscopy
Acceso en línea:http://hdl.handle.net/2133/11443
http://hdl.handle.net/2133/11443
Aporte de:
Repositorio Hipermedial de la Universidad Nacional de Rosario (UNR) de Universidad Nacional de Rosario
id I15-R121-2133-11443
record_format dspace
institution Universidad Nacional de Rosario
institution_str I-15
repository_str R-121
collection Repositorio Hipermedial de la Universidad Nacional de Rosario (UNR)
language Inglés
orig_language_str_mv eng
topic Tributyltin
Natural Samples
Multivariate Calibration
Fluorescence Spectroscopy
spellingShingle Tributyltin
Natural Samples
Multivariate Calibration
Fluorescence Spectroscopy
Olivieri, Alejandro César
Escandar, Graciela Mónica
Bravo, Manuel
Aguilar, Luis Felipe
Quiroz, Waldo
Determination of tributyltin at parts-per-trillion levels in natural waters by second-order multivariate calibration and fluorescence spectroscopy
topic_facet Tributyltin
Natural Samples
Multivariate Calibration
Fluorescence Spectroscopy
description This 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.
author Olivieri, Alejandro César
Escandar, Graciela Mónica
Bravo, Manuel
Aguilar, Luis Felipe
Quiroz, Waldo
author_facet Olivieri, Alejandro César
Escandar, Graciela Mónica
Bravo, Manuel
Aguilar, Luis Felipe
Quiroz, Waldo
author_sort Olivieri, Alejandro César
title Determination of tributyltin at parts-per-trillion levels in natural waters by second-order multivariate calibration and fluorescence spectroscopy
title_short Determination of tributyltin at parts-per-trillion levels in natural waters by second-order multivariate calibration and fluorescence spectroscopy
title_full Determination of tributyltin at parts-per-trillion levels in natural waters by second-order multivariate calibration and fluorescence spectroscopy
title_fullStr Determination of tributyltin at parts-per-trillion levels in natural waters by second-order multivariate calibration and fluorescence spectroscopy
title_full_unstemmed Determination of tributyltin at parts-per-trillion levels in natural waters by second-order multivariate calibration and fluorescence spectroscopy
title_sort determination of tributyltin at parts-per-trillion levels in natural waters by second-order multivariate calibration and fluorescence spectroscopy
publisher Elsevier
publishDate 2018
url http://hdl.handle.net/2133/11443
http://hdl.handle.net/2133/11443
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