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Thin Film Electrodes for Anodic Stripping Voltammetry: A Mini-Review

Anodic stripping voltammetry (ASV) is a powerful electrochemical analytical technique that allows for the detection and quantification of a variety of metal ion species at very low concentrations in aqueous media. While early, traditional ASV measurements relied on macroscopic electrodes like Hg dro...

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Autores principales: Wygant, Bryan R., Lambert, Timothy N.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8847685/
https://www.ncbi.nlm.nih.gov/pubmed/35186893
http://dx.doi.org/10.3389/fchem.2021.809535
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author Wygant, Bryan R.
Lambert, Timothy N.
author_facet Wygant, Bryan R.
Lambert, Timothy N.
author_sort Wygant, Bryan R.
collection PubMed
description Anodic stripping voltammetry (ASV) is a powerful electrochemical analytical technique that allows for the detection and quantification of a variety of metal ion species at very low concentrations in aqueous media. While early, traditional ASV measurements relied on macroscopic electrodes like Hg drop electrodes to provide surfaces suitable for plating/stripping, more recent work on the technique has replaced these electrodes with thin film metal electrodes generated in situ. Such electrodes are plated alongside the analyte species onto the surface of a primary electrode, producing a composite metal electrode from which the analyte(s) can then be stripped, identified, and quantified. In this minireview, we will explore the development and use of these unique electrodes in a variety of different applications. A number of metals (e.g., Hg, Bi, Sn, etc.) have shown promise as thin film ASV electrodes in both acidic and alkaline media, and frequently multiple metals in addition to the analyte of interest are deposited together to optimize the plating/stripping behavior, improving sensitivity. Due to the relatively simple nature of the measurement and its suitability for a wide range of pH, it has been used broadly: To measure toxic metals in the environment, characterize battery materials, and enable biological assays, among other applications. We will discuss these applications in greater detail, as well as provide perspective on future development and uses of these thin film electrodes in ASV measurements.
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spelling pubmed-88476852022-02-17 Thin Film Electrodes for Anodic Stripping Voltammetry: A Mini-Review Wygant, Bryan R. Lambert, Timothy N. Front Chem Chemistry Anodic stripping voltammetry (ASV) is a powerful electrochemical analytical technique that allows for the detection and quantification of a variety of metal ion species at very low concentrations in aqueous media. While early, traditional ASV measurements relied on macroscopic electrodes like Hg drop electrodes to provide surfaces suitable for plating/stripping, more recent work on the technique has replaced these electrodes with thin film metal electrodes generated in situ. Such electrodes are plated alongside the analyte species onto the surface of a primary electrode, producing a composite metal electrode from which the analyte(s) can then be stripped, identified, and quantified. In this minireview, we will explore the development and use of these unique electrodes in a variety of different applications. A number of metals (e.g., Hg, Bi, Sn, etc.) have shown promise as thin film ASV electrodes in both acidic and alkaline media, and frequently multiple metals in addition to the analyte of interest are deposited together to optimize the plating/stripping behavior, improving sensitivity. Due to the relatively simple nature of the measurement and its suitability for a wide range of pH, it has been used broadly: To measure toxic metals in the environment, characterize battery materials, and enable biological assays, among other applications. We will discuss these applications in greater detail, as well as provide perspective on future development and uses of these thin film electrodes in ASV measurements. Frontiers Media S.A. 2022-02-02 /pmc/articles/PMC8847685/ /pubmed/35186893 http://dx.doi.org/10.3389/fchem.2021.809535 Text en Copyright © 2022 Wygant and Lambert. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Chemistry
Wygant, Bryan R.
Lambert, Timothy N.
Thin Film Electrodes for Anodic Stripping Voltammetry: A Mini-Review
title Thin Film Electrodes for Anodic Stripping Voltammetry: A Mini-Review
title_full Thin Film Electrodes for Anodic Stripping Voltammetry: A Mini-Review
title_fullStr Thin Film Electrodes for Anodic Stripping Voltammetry: A Mini-Review
title_full_unstemmed Thin Film Electrodes for Anodic Stripping Voltammetry: A Mini-Review
title_short Thin Film Electrodes for Anodic Stripping Voltammetry: A Mini-Review
title_sort thin film electrodes for anodic stripping voltammetry: a mini-review
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8847685/
https://www.ncbi.nlm.nih.gov/pubmed/35186893
http://dx.doi.org/10.3389/fchem.2021.809535
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