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Electroanalytical Techniques for the Detection of Selenium as a Biologically and Environmentally Significant Analyte—A Short Review

This short review deals with the properties and significance of the determination of selenium, which is in trace amounts an essential element for animals and humans, but toxic at high concentrations. It may cause oxidative stress in cells, which leads to the chronic disease called selenosis. Several...

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Autores principales: Rievaj, Miroslav, Culková, Eva, Šandorová, Damiána, Lukáčová-Chomisteková, Zuzana, Bellová, Renata, Durdiak, Jaroslav, Tomčík, Peter
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8004073/
https://www.ncbi.nlm.nih.gov/pubmed/33809841
http://dx.doi.org/10.3390/molecules26061768
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author Rievaj, Miroslav
Culková, Eva
Šandorová, Damiána
Lukáčová-Chomisteková, Zuzana
Bellová, Renata
Durdiak, Jaroslav
Tomčík, Peter
author_facet Rievaj, Miroslav
Culková, Eva
Šandorová, Damiána
Lukáčová-Chomisteková, Zuzana
Bellová, Renata
Durdiak, Jaroslav
Tomčík, Peter
author_sort Rievaj, Miroslav
collection PubMed
description This short review deals with the properties and significance of the determination of selenium, which is in trace amounts an essential element for animals and humans, but toxic at high concentrations. It may cause oxidative stress in cells, which leads to the chronic disease called selenosis. Several analytical techniques have been developed for its detection, but electroanalytical methods are advantageous due to simple sample preparation, speed of analysis and high sensitivity of measurements, especially in the case of stripping voltammetry very low detection limits even in picomoles per liter can be reached. A variety of working electrodes based on mercury, carbon, silver, platinum and gold materials were applied to the analysis of selenium in various samples. Only selenium in oxidation state + IV is electroactive therefore the most of voltammetric determinations are devoted to it. However, it is possible to detect also other forms of selenium by indirect electrochemistry approach.
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spelling pubmed-80040732021-03-28 Electroanalytical Techniques for the Detection of Selenium as a Biologically and Environmentally Significant Analyte—A Short Review Rievaj, Miroslav Culková, Eva Šandorová, Damiána Lukáčová-Chomisteková, Zuzana Bellová, Renata Durdiak, Jaroslav Tomčík, Peter Molecules Review This short review deals with the properties and significance of the determination of selenium, which is in trace amounts an essential element for animals and humans, but toxic at high concentrations. It may cause oxidative stress in cells, which leads to the chronic disease called selenosis. Several analytical techniques have been developed for its detection, but electroanalytical methods are advantageous due to simple sample preparation, speed of analysis and high sensitivity of measurements, especially in the case of stripping voltammetry very low detection limits even in picomoles per liter can be reached. A variety of working electrodes based on mercury, carbon, silver, platinum and gold materials were applied to the analysis of selenium in various samples. Only selenium in oxidation state + IV is electroactive therefore the most of voltammetric determinations are devoted to it. However, it is possible to detect also other forms of selenium by indirect electrochemistry approach. MDPI 2021-03-22 /pmc/articles/PMC8004073/ /pubmed/33809841 http://dx.doi.org/10.3390/molecules26061768 Text en © 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Review
Rievaj, Miroslav
Culková, Eva
Šandorová, Damiána
Lukáčová-Chomisteková, Zuzana
Bellová, Renata
Durdiak, Jaroslav
Tomčík, Peter
Electroanalytical Techniques for the Detection of Selenium as a Biologically and Environmentally Significant Analyte—A Short Review
title Electroanalytical Techniques for the Detection of Selenium as a Biologically and Environmentally Significant Analyte—A Short Review
title_full Electroanalytical Techniques for the Detection of Selenium as a Biologically and Environmentally Significant Analyte—A Short Review
title_fullStr Electroanalytical Techniques for the Detection of Selenium as a Biologically and Environmentally Significant Analyte—A Short Review
title_full_unstemmed Electroanalytical Techniques for the Detection of Selenium as a Biologically and Environmentally Significant Analyte—A Short Review
title_short Electroanalytical Techniques for the Detection of Selenium as a Biologically and Environmentally Significant Analyte—A Short Review
title_sort electroanalytical techniques for the detection of selenium as a biologically and environmentally significant analyte—a short review
topic Review
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8004073/
https://www.ncbi.nlm.nih.gov/pubmed/33809841
http://dx.doi.org/10.3390/molecules26061768
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