An Exfoliated Graphite-Based Bisphenol A Electrochemical Sensor

The use of an exfoliated graphite (EG) electrode in the square wave voltammetric detection of bisphenol A (a model phenolic pollutant) in water, whereby the phenolic electrode fouling challenge is mitigated, is described. The oxidation peak of BPA was observed at about 0.45 V in phosphate buffer sol...

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Detalles Bibliográficos
Autores principales: Ndlovu, Thabile, Arotiba, Omotayo A., Sampath, Srinivasan, Krause, Rui W., Mamba, Bhekie B.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Molecular Diversity Preservation International (MDPI) 2012
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3478800/
http://dx.doi.org/10.3390/s120911601
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author Ndlovu, Thabile
Arotiba, Omotayo A.
Sampath, Srinivasan
Krause, Rui W.
Mamba, Bhekie B.
author_facet Ndlovu, Thabile
Arotiba, Omotayo A.
Sampath, Srinivasan
Krause, Rui W.
Mamba, Bhekie B.
author_sort Ndlovu, Thabile
collection PubMed
description The use of an exfoliated graphite (EG) electrode in the square wave voltammetric detection of bisphenol A (a model phenolic pollutant) in water, whereby the phenolic electrode fouling challenge is mitigated, is described. The oxidation peak of BPA was observed at about 0.45 V in phosphate buffer solution at pH 10. The current response exhibited a linear relationship with the concentration over a range from 1.56 μM–50 μM. The detection limit was calculated to be 0.76 μM. The EG electrode surface was renewed after each measurement with excellent reproducibility. A real sample application was also investigated.
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spelling pubmed-34788002012-10-30 An Exfoliated Graphite-Based Bisphenol A Electrochemical Sensor Ndlovu, Thabile Arotiba, Omotayo A. Sampath, Srinivasan Krause, Rui W. Mamba, Bhekie B. Sensors (Basel) Article The use of an exfoliated graphite (EG) electrode in the square wave voltammetric detection of bisphenol A (a model phenolic pollutant) in water, whereby the phenolic electrode fouling challenge is mitigated, is described. The oxidation peak of BPA was observed at about 0.45 V in phosphate buffer solution at pH 10. The current response exhibited a linear relationship with the concentration over a range from 1.56 μM–50 μM. The detection limit was calculated to be 0.76 μM. The EG electrode surface was renewed after each measurement with excellent reproducibility. A real sample application was also investigated. Molecular Diversity Preservation International (MDPI) 2012-08-27 /pmc/articles/PMC3478800/ http://dx.doi.org/10.3390/s120911601 Text en © 2012 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 license (http://creativecommons.org/licenses/by/3.0/).
spellingShingle Article
Ndlovu, Thabile
Arotiba, Omotayo A.
Sampath, Srinivasan
Krause, Rui W.
Mamba, Bhekie B.
An Exfoliated Graphite-Based Bisphenol A Electrochemical Sensor
title An Exfoliated Graphite-Based Bisphenol A Electrochemical Sensor
title_full An Exfoliated Graphite-Based Bisphenol A Electrochemical Sensor
title_fullStr An Exfoliated Graphite-Based Bisphenol A Electrochemical Sensor
title_full_unstemmed An Exfoliated Graphite-Based Bisphenol A Electrochemical Sensor
title_short An Exfoliated Graphite-Based Bisphenol A Electrochemical Sensor
title_sort exfoliated graphite-based bisphenol a electrochemical sensor
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3478800/
http://dx.doi.org/10.3390/s120911601
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