A second-order fluorimetric approach based on a boron dipyrromethene tetraamide derivative for Hg(II) chemosensing in water and fish samples

A new fluorimetric method is described for the determination of Hg(II), based on the selectivity of a boron dipyrromethene tetraamide derivative (BODIPYTD) towards this ion, in combination with second-order chemometric analysis, to deal with matrix interferents. This is the first time that the selec...

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Detalles Bibliográficos
Autores principales: Lozano, Valeria Antonella, Muñoz de la Peña, Arsenio, Escandar, Graciela Mónica
Lenguaje:Inglés
Publicado: Royal Society of Chemistry 2019
Materias:
Mercury ion
Second-order fluorimetric
Bodipy
Water fish samples
Acceso en línea:http://hdl.handle.net/2133/13881
http://hdl.handle.net/2133/13881
Aporte de:
Repositorio Hipermedial de la Universidad Nacional de Rosario (UNR) de Universidad Nacional de Rosario
id I15-R121-2133-13881
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 Mercury ion
Second-order fluorimetric
Bodipy
Water fish samples
spellingShingle Mercury ion
Second-order fluorimetric
Bodipy
Water fish samples
Lozano, Valeria Antonella
Muñoz de la Peña, Arsenio
Escandar, Graciela Mónica
A second-order fluorimetric approach based on a boron dipyrromethene tetraamide derivative for Hg(II) chemosensing in water and fish samples
topic_facet Mercury ion
Second-order fluorimetric
Bodipy
Water fish samples
description A new fluorimetric method is described for the determination of Hg(II), based on the selectivity of a boron dipyrromethene tetraamide derivative (BODIPYTD) towards this ion, in combination with second-order chemometric analysis, to deal with matrix interferents. This is the first time that the selectivity of a mercury chemosensor regarding other metal ions is reinforced with the selectivity offered by second-order calibration, which is able to overcome the potential interference produced by organic constituents of natural or bio-samples. After the BODIPYTD–Hg(II) complex was formed, the excitation–emission fluorescence matrix was recorded and parallel factor analysis (PARAFAC) was applied for data processing. This algorithm achieves the second-order advantage and was able to overcome the problem of the presence of unexpected interferents. This method was applied to the direct determination of Hg(II) ions in environmental waters and fish muscle tissues, with minimal pretreatment steps and without the need for organic solvents. The results were successfully evaluated through a spiking recovery study in both types of real samples, which have constituents displaying fluorescence signals potentially able to interfere in the analysis. The latter fact demonstrates the excellent selectivity of the proposed method. The studied concentration range in water samples was 10–30 ng mL−1, while in fish samples it was 0.12–0.30 μg g−1. The limits of detection for water and fish samples were 2 ng mL−1 and 4 × 10−3 μg g−1, respectively, with relative prediction errors below 5%, and a sample throughput of about 8 samples per hour.
author Lozano, Valeria Antonella
Muñoz de la Peña, Arsenio
Escandar, Graciela Mónica
author_facet Lozano, Valeria Antonella
Muñoz de la Peña, Arsenio
Escandar, Graciela Mónica
author_sort Lozano, Valeria Antonella
title A second-order fluorimetric approach based on a boron dipyrromethene tetraamide derivative for Hg(II) chemosensing in water and fish samples
title_short A second-order fluorimetric approach based on a boron dipyrromethene tetraamide derivative for Hg(II) chemosensing in water and fish samples
title_full A second-order fluorimetric approach based on a boron dipyrromethene tetraamide derivative for Hg(II) chemosensing in water and fish samples
title_fullStr A second-order fluorimetric approach based on a boron dipyrromethene tetraamide derivative for Hg(II) chemosensing in water and fish samples
title_full_unstemmed A second-order fluorimetric approach based on a boron dipyrromethene tetraamide derivative for Hg(II) chemosensing in water and fish samples
title_sort second-order fluorimetric approach based on a boron dipyrromethene tetraamide derivative for hg(ii) chemosensing in water and fish samples
publisher Royal Society of Chemistry
publishDate 2019
url http://hdl.handle.net/2133/13881
http://hdl.handle.net/2133/13881
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