Direct As(V) Determination Using Screen-Printed Electrodes Modified with Silver Nanoparticles
Open Access
- 29 June 2020
- journal article
- research article
- Published by MDPI AG in Nanomaterials
- Vol. 10 (7), 1280
- https://doi.org/10.3390/nano10071280
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.Funding Information
- Generalitat de Catalunya (2017SGR311, 2017SGR312)
This publication has 26 references indexed in Scilit:
- Core/Shell Nanoparticles: Classes, Properties, Synthesis Mechanisms, Characterization, and ApplicationsChemical Reviews, 2011
- Selective Detection of As(V) with High Sensitivity by As-deposited Boron-doped Diamond ElectrodesChemistry Letters, 2010
- From Ag Nanoprisms to Triangular AuAg NanoboxesAdvanced Functional Materials, 2010
- Optical Properties and Growth Aspects of Silver Nanoprisms Produced by a Highly Reproducible and Rapid Synthesis at Room TemperatureAdvanced Functional Materials, 2008
- Sensitive electrochemical detection of arsenic (III) using gold nanoparticle modified carbon nanotubes via anodic stripping voltammetryAnalytica Chimica Acta, 2008
- Preparation and Growth Mechanism of Gold Nanorods (NRs) Using Seed-Mediated Growth MethodChemistry of Materials, 2003
- Flow-injection hydride generation atomic absorption spectrometric study of the automated on-line pre-reduction of arsenate, methylarsonate and dimethylarsinate and high-performance liquid chromatographic separation of their ?-cysteine complexesTalanta, 2000
- Testing the Limits of ICP‐MS: Determination of Trace Elements in Ground Water at the Part‐Per‐Trillion LevelGroundwater, 1994
- Determination of arsenic speciation by liquid chromatography—hydride generation inductively coupled plasma atomic emission spectrometry with on-line UV photooxidationAnalytica Chimica Acta, 1993
- Effect of heavy metals on mortality and growthMarine Pollution Bulletin, 1971