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Plasticized PVC Membrane Modified Electrodes: Voltammetry of Highly Hydrophobic Compounds

In the last 50 years, plasticized polyvinyl chloride (PVC) membranes have gained unique importance in chemical sensor development. Originally, these membranes separated two solutions in conventional ion-selective electrodes. Later, the same membranes were applied over a variety of supporting electro...

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Autores principales: Lindner, Ernő, Guzinski, Marcin, Pendley, Bradford, Chaum, Edward
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7558981/
https://www.ncbi.nlm.nih.gov/pubmed/32867276
http://dx.doi.org/10.3390/membranes10090202
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author Lindner, Ernő
Guzinski, Marcin
Pendley, Bradford
Chaum, Edward
author_facet Lindner, Ernő
Guzinski, Marcin
Pendley, Bradford
Chaum, Edward
author_sort Lindner, Ernő
collection PubMed
description In the last 50 years, plasticized polyvinyl chloride (PVC) membranes have gained unique importance in chemical sensor development. Originally, these membranes separated two solutions in conventional ion-selective electrodes. Later, the same membranes were applied over a variety of supporting electrodes and used in both potentiometric and voltammetric measurements of ions and electrically charged molecules. The focus of this paper is to demonstrate the utility of the plasticized PVC membrane modified working electrode for the voltammetric measurement of highly lipophilic molecules. The plasticized PVC membrane prevents electrode fouling, extends the detection limit of the voltammetric methods to sub-micromolar concentrations, and minimizes interference by electrochemically active hydrophilic analytes.
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spelling pubmed-75589812020-10-26 Plasticized PVC Membrane Modified Electrodes: Voltammetry of Highly Hydrophobic Compounds Lindner, Ernő Guzinski, Marcin Pendley, Bradford Chaum, Edward Membranes (Basel) Article In the last 50 years, plasticized polyvinyl chloride (PVC) membranes have gained unique importance in chemical sensor development. Originally, these membranes separated two solutions in conventional ion-selective electrodes. Later, the same membranes were applied over a variety of supporting electrodes and used in both potentiometric and voltammetric measurements of ions and electrically charged molecules. The focus of this paper is to demonstrate the utility of the plasticized PVC membrane modified working electrode for the voltammetric measurement of highly lipophilic molecules. The plasticized PVC membrane prevents electrode fouling, extends the detection limit of the voltammetric methods to sub-micromolar concentrations, and minimizes interference by electrochemically active hydrophilic analytes. MDPI 2020-08-27 /pmc/articles/PMC7558981/ /pubmed/32867276 http://dx.doi.org/10.3390/membranes10090202 Text en © 2020 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 Article
Lindner, Ernő
Guzinski, Marcin
Pendley, Bradford
Chaum, Edward
Plasticized PVC Membrane Modified Electrodes: Voltammetry of Highly Hydrophobic Compounds
title Plasticized PVC Membrane Modified Electrodes: Voltammetry of Highly Hydrophobic Compounds
title_full Plasticized PVC Membrane Modified Electrodes: Voltammetry of Highly Hydrophobic Compounds
title_fullStr Plasticized PVC Membrane Modified Electrodes: Voltammetry of Highly Hydrophobic Compounds
title_full_unstemmed Plasticized PVC Membrane Modified Electrodes: Voltammetry of Highly Hydrophobic Compounds
title_short Plasticized PVC Membrane Modified Electrodes: Voltammetry of Highly Hydrophobic Compounds
title_sort plasticized pvc membrane modified electrodes: voltammetry of highly hydrophobic compounds
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7558981/
https://www.ncbi.nlm.nih.gov/pubmed/32867276
http://dx.doi.org/10.3390/membranes10090202
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