Electrochemical Oxidation and Determination of Oxalic Acid at an Exfoliated Graphite-Polystyrene Composite Electrode

Electrochemical Oxidation and Determination of Oxalic Acid at an Exfoliated Graphite-Polystyrene Composite Electrode

An exfoliated graphite-polystyrene composite electrode was evaluated as an alternative electrode in the oxidation and the determination of oxalic acid in 0.1 M Na2SO4 supporting electrolyte. Using CV, LSV, CA procedures, linear dependences I vs. C were obtained in the concentrations range of oxalic...

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Main Authors: Manea, Florica, Radovan, Ciprian, Corb, Ioana, Pop, Aniela, Burtica, Georgeta, Malchev, Plamen, Picken, Stephen, Schoonman, Joop
Format: Online
Language:English
Published: Molecular Diversity Preservation International (MDPI) 2007
Online Access:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3800367/
id pubmed-3800367
recordtype oai_dc
spelling pubmed-38003672013-10-22 Electrochemical Oxidation and Determination of Oxalic Acid at an Exfoliated Graphite-Polystyrene Composite Electrode Manea, Florica Radovan, Ciprian Corb, Ioana Pop, Aniela Burtica, Georgeta Malchev, Plamen Picken, Stephen Schoonman, Joop Full Research Paper An exfoliated graphite-polystyrene composite electrode was evaluated as an alternative electrode in the oxidation and the determination of oxalic acid in 0.1 M Na2SO4 supporting electrolyte. Using CV, LSV, CA procedures, linear dependences I vs. C were obtained in the concentrations range of oxalic acid between 0.5 to 3 mM, with LOD =0.05 mM, and recovery degree of 98%, without need of surface renewing between successive runs. The accuracy of the methods was evaluated as excellent comparing the detection results with that obtained using conventional KMnO4 titration method. In addition, the apparent diffusion coefficient of oxalic acid D was found to be around 2.89 · 10-8 cm2·s-1 by CA and CV. Molecular Diversity Preservation International (MDPI) 2007-04-30 /pmc/articles/PMC3800367/ Text en © 2007 by MDPI (http://www.mdpi.org). Reproduction is permitted for noncommercial purposes.
repository_type Open Access Journal
institution_category Foreign Institution
institution US National Center for Biotechnology Information
building NCBI PubMed
collection Online Access
language English
format Online
author Manea, Florica
Radovan, Ciprian
Corb, Ioana
Pop, Aniela
Burtica, Georgeta
Malchev, Plamen
Picken, Stephen
Schoonman, Joop
spellingShingle Manea, Florica
Radovan, Ciprian
Corb, Ioana
Pop, Aniela
Burtica, Georgeta
Malchev, Plamen
Picken, Stephen
Schoonman, Joop
Electrochemical Oxidation and Determination of Oxalic Acid at an Exfoliated Graphite-Polystyrene Composite Electrode
author_facet Manea, Florica
Radovan, Ciprian
Corb, Ioana
Pop, Aniela
Burtica, Georgeta
Malchev, Plamen
Picken, Stephen
Schoonman, Joop
author_sort Manea, Florica
title Electrochemical Oxidation and Determination of Oxalic Acid at an Exfoliated Graphite-Polystyrene Composite Electrode
title_short Electrochemical Oxidation and Determination of Oxalic Acid at an Exfoliated Graphite-Polystyrene Composite Electrode
title_full Electrochemical Oxidation and Determination of Oxalic Acid at an Exfoliated Graphite-Polystyrene Composite Electrode
title_fullStr Electrochemical Oxidation and Determination of Oxalic Acid at an Exfoliated Graphite-Polystyrene Composite Electrode
title_full_unstemmed Electrochemical Oxidation and Determination of Oxalic Acid at an Exfoliated Graphite-Polystyrene Composite Electrode
title_sort electrochemical oxidation and determination of oxalic acid at an exfoliated graphite-polystyrene composite electrode
description An exfoliated graphite-polystyrene composite electrode was evaluated as an alternative electrode in the oxidation and the determination of oxalic acid in 0.1 M Na2SO4 supporting electrolyte. Using CV, LSV, CA procedures, linear dependences I vs. C were obtained in the concentrations range of oxalic acid between 0.5 to 3 mM, with LOD =0.05 mM, and recovery degree of 98%, without need of surface renewing between successive runs. The accuracy of the methods was evaluated as excellent comparing the detection results with that obtained using conventional KMnO4 titration method. In addition, the apparent diffusion coefficient of oxalic acid D was found to be around 2.89 · 10-8 cm2·s-1 by CA and CV.
publisher Molecular Diversity Preservation International (MDPI)
publishDate 2007
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3800367/
_version_ 1612019313449893888

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