Please use this identifier to cite or link to this item:
Title: Direct As(V) Determination Using Screen-Printed Electrodes Modified with Silver Nanoparticles
Author: Torres Rivero, Karina
Pérez Ràfols, Clara
Bastos Arrieta, Julio
Florido, Antonio
Martí, Vicenç
Serrano i Plana, Núria
Keywords: Elèctrodes de carboni
Carbon electrodes
Issue Date: 30-Jun-2020
Publisher: MDPI
Abstract: 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-1 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-1, 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.
Note: Reproducció del document publicat a:
It is part of: Nanomaterials, 2020, vol. 10, num. 7, p. 1280
Related resource:
ISSN: 2079-4991
Appears in Collections:Articles publicats en revistes (Enginyeria Química i Química Analítica)

Files in This Item:
File Description SizeFormat 
706879.pdf1.7 MBAdobe PDFView/Open

This item is licensed under a Creative Commons License Creative Commons