Modification of glassy carbon electrode in basic medium by electrochemical treatment for simultaneous determination of dopamine, ascorbic acid and uric acid

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dc.contributor.authorTemocin, Zulfikar
dc.date.accessioned2020-06-25T18:07:41Z
dc.date.available2020-06-25T18:07:41Z
dc.date.issued2013
dc.departmentKırıkkale Üniversitesi
dc.descriptionTemocin, Zulfikar/0000-0001-7151-9772
dc.description.abstractIn this paper, a modified glassy carbon electrode was prepared by electrochemical method in basic media (0.5 M NaOH solutions) and was used to electrochemically detect dopamine (DA), ascorbic acid (AA), uric acid (UA) and their mixture by a differential pulse voltammetry (DPV) technique. In this simultaneous detection, the electrochemical potential difference between AA and DA was measured to be 165 mV, while between DA and UA it was 135 mV, and between AA and UA 300 mV. The potential differences were large enough to determine AA, DA, and UA individually and simultaneously. The DPV oxidation peak current was linearly dependent on DA, AA, and UA concentration in the range 3-30 mu M, 25-300 mu M, and 5-70 mu M, with correlation coefficients of 0.994, 0.998, and 0.996, respectively. The limit of detection (S/N = 3) was found to be 2.67, 23.38 and 4.70 mu M for DA, AA and UA. The modified electrode was applied to the determination of DA, AA, and UA in real samples. These results and interference studies showed that the modified electrode possesses the potential for simultaneous determination of DA, AA, and UA. (C) 2012 Elsevier B. V. All rights reserved.en_US
dc.description.sponsorshipResearch Fundation of Kirikkale UniversityKirikkale University [2009-44]en_US
dc.description.sponsorshipThis work was financially supported by the Research Fundation of Kirikkale University (2009-44).en_US
dc.identifier.citationclosedAccessen_US
dc.identifier.doi10.1016/j.snb.2012.09.078
dc.identifier.endpage802en_US
dc.identifier.issn0925-4005
dc.identifier.scopus2-s2.0-84875455742
dc.identifier.scopusqualityQ1
dc.identifier.startpage796en_US
dc.identifier.urihttps://doi.org/10.1016/j.snb.2012.09.078
dc.identifier.urihttps://hdl.handle.net/20.500.12587/5641
dc.identifier.volume176en_US
dc.identifier.wosWOS:000319867500109
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier Science Saen_US
dc.relation.ispartofSensors And Actuators B-Chemical
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectElectrochemical treatmenten_US
dc.subjectGlassy carbonen_US
dc.subjectDopamineen_US
dc.subjectSurface modificationen_US
dc.subjectSimultaneous determinationen_US
dc.titleModification of glassy carbon electrode in basic medium by electrochemical treatment for simultaneous determination of dopamine, ascorbic acid and uric aciden_US
dc.typeArticle

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