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Simultaneous electrochemical detection of dopamine, catechol and ascorbic acid at a poly(acriflavine) modified electrode

  • Teesside University

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Electro polymerized poly(acriflavine) modified gold (Au) electrode has been prepared and used for the electrochemical detection of dopamine (DA) and catechol (CA) without the interference of ascorbic acid (AA). The experimental results demonstrates that, PAF/Au electrode exhibited favorable electron transfer kinetics and electro catalytic activity towards the oxidation of Dopamine and Ascorbic acid in neutral (pH 7.0) and acidic (pH 5.0) conditions. PAF/Au was found be a good mediator for electrochemical oxidation of Ascorbic Acid, Dopamine and Catechol in pH 7.0 and pH 5.0 PBS buffer solutions. In the Differential Pulse Voltammetry study, PAF/Au electrode offers large peak separation, 120mV between AA and DA at pH 7.0 owing to the introduction of positively charged electrostatic barrier generated by PAF film. Similarly, a large peak separation, 380mV between AA and CA was recorded in this experimental study with a RSD of 6.5%.
Original languageEnglish
Title of host publicationXIII Mediterranean Conference on Medical and Biological Engineering and Computing 2013
EditorsLaura Maria Roa Romero
Place of PublicationCham, Switzerland
PublisherSpringer
Pages892-895
Volume41
ISBN (Electronic)9783319008462
ISBN (Print)9783319008455
DOIs
Publication statusPublished - 2014
EventMediterranean Conference on Medical and Biological Engineering and Computing
: Research and Development of Technology for Sustainable Healthcare
- Seville, Spain
Duration: 25 Sept 201328 Sept 2013
Conference number: XIII
http://www.medicon2013.com/

Publication series

NameIFMBE Proceedings
PublisherSpringer
Volume41
ISSN (Print)1680-0737
ISSN (Electronic)1433-9277

Conference

ConferenceMediterranean Conference on Medical and Biological Engineering and Computing
Abbreviated titleMEDICON 2013
Country/TerritorySpain
CitySeville
Period25/09/1328/09/13
Internet address

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