Direct As(V) Determination Using Screen-Printed Electrodes Modified with Silver Manoparticles
Carbon-nanofiber-based screen-printed electrodes modified with silver nanoparticles (Ag-NP-SPCNFEs) were tested in a pioneering manner for the direct determination of As(V) at low μg L<sup>–1</sup> levels by means of differential pulse anodic stripping voltammetry. Screen-printed electro...
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doaj-786c3e1a66ad4d68b841216822b1eb182020-11-25T02:45:34ZengMDPI AGNanomaterials2079-49912020-06-01101280128010.3390/nano10071280Direct As(V) Determination Using Screen-Printed Electrodes Modified with Silver ManoparticlesKarina Torres-Rivero0Clara Pérez-Ràfols1Julio Bastos-Arrieta2Antonio Florido3Vicenç Martí4Núria Serrano5Departament d’Enginyeria Química, Escola d’Enginyeria de Barcelona Est (EEBE), Universitat Politècnica de Catalunya, BarcelonaTEch (UPC), Av. Eduard Maristany 16, 08019 Barcelona, SpainDepartament d’Enginyeria Química i Química Analítica, Facultat de Química, Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, SpainPhysical Chemistry, Technische Universität Dresden, Zellescher Weg 19, 01069 Dresden, GermanyDepartament d’Enginyeria Química, Escola d’Enginyeria de Barcelona Est (EEBE), Universitat Politècnica de Catalunya, BarcelonaTEch (UPC), Av. Eduard Maristany 16, 08019 Barcelona, SpainDepartament d’Enginyeria Química, Escola d’Enginyeria de Barcelona Est (EEBE), Universitat Politècnica de Catalunya, BarcelonaTEch (UPC), Av. Eduard Maristany 16, 08019 Barcelona, SpainDepartament d’Enginyeria Química i Química Analítica, Facultat de Química, Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, SpainCarbon-nanofiber-based screen-printed electrodes modified with silver nanoparticles (Ag-NP-SPCNFEs) were tested in a pioneering manner for the direct determination of As(V) at low μg L<sup>–1</sup> levels by means of differential pulse anodic stripping voltammetry. Screen-printed electrodes were modified with two different types of Ag-NPs, nanoseeds (NS), and nanoprisms (NPr) and characterized both microscopically and electrochemically. Furthermore, after optimizing the direct voltammetric determination of As(V), the analytical performance of considered sensors was compared for the direct determination of As(V). These results suggest that Ag-NS offer a better analytical response compared to Ag-NPr, with a detection and quantification limit of 0.6 and 1.9 µg L<sup>–1</sup>, respectively. The proposed methodology was validated using a spiked tap water sample with a very high reproducibility and good agreement with inductively coupled plasma - mass spectrometry (ICP-MS) measurements.https://www.mdpi.com/2079-4991/10/7/1280arsenic determinationsilver nanoparticlesanodic stripping voltammetryscreen-printed electrodeswater analysis |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Karina Torres-Rivero Clara Pérez-Ràfols Julio Bastos-Arrieta Antonio Florido Vicenç Martí Núria Serrano |
spellingShingle |
Karina Torres-Rivero Clara Pérez-Ràfols Julio Bastos-Arrieta Antonio Florido Vicenç Martí Núria Serrano Direct As(V) Determination Using Screen-Printed Electrodes Modified with Silver Manoparticles Nanomaterials arsenic determination silver nanoparticles anodic stripping voltammetry screen-printed electrodes water analysis |
author_facet |
Karina Torres-Rivero Clara Pérez-Ràfols Julio Bastos-Arrieta Antonio Florido Vicenç Martí Núria Serrano |
author_sort |
Karina Torres-Rivero |
title |
Direct As(V) Determination Using Screen-Printed Electrodes Modified with Silver Manoparticles |
title_short |
Direct As(V) Determination Using Screen-Printed Electrodes Modified with Silver Manoparticles |
title_full |
Direct As(V) Determination Using Screen-Printed Electrodes Modified with Silver Manoparticles |
title_fullStr |
Direct As(V) Determination Using Screen-Printed Electrodes Modified with Silver Manoparticles |
title_full_unstemmed |
Direct As(V) Determination Using Screen-Printed Electrodes Modified with Silver Manoparticles |
title_sort |
direct as(v) determination using screen-printed electrodes modified with silver manoparticles |
publisher |
MDPI AG |
series |
Nanomaterials |
issn |
2079-4991 |
publishDate |
2020-06-01 |
description |
Carbon-nanofiber-based screen-printed electrodes modified with silver nanoparticles (Ag-NP-SPCNFEs) were tested in a pioneering manner for the direct determination of As(V) at low μg L<sup>–1</sup> levels by means of differential pulse anodic stripping voltammetry. Screen-printed electrodes were modified with two different types of Ag-NPs, nanoseeds (NS), and nanoprisms (NPr) and characterized both microscopically and electrochemically. Furthermore, after optimizing the direct voltammetric determination of As(V), the analytical performance of considered sensors was compared for the direct determination of As(V). These results suggest that Ag-NS offer a better analytical response compared to Ag-NPr, with a detection and quantification limit of 0.6 and 1.9 µg L<sup>–1</sup>, respectively. The proposed methodology was validated using a spiked tap water sample with a very high reproducibility and good agreement with inductively coupled plasma - mass spectrometry (ICP-MS) measurements. |
topic |
arsenic determination silver nanoparticles anodic stripping voltammetry screen-printed electrodes water analysis |
url |
https://www.mdpi.com/2079-4991/10/7/1280 |
work_keys_str_mv |
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