Selective voltammetric detection of epinephrine in the presence of ascorbic acid at poly(4-methoxyphenol)-modified electrode

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dc.authoridERDOGDU, GAMZE/0000-0002-8114-6946
dc.authorwosidERDOGDU, GAMZE/ABG-7776-2020
dc.contributor.authorErdogdu, G
dc.date.accessioned2024-08-04T20:13:26Z
dc.date.available2024-08-04T20:13:26Z
dc.date.issued2002
dc.departmentİnönü Üniversitesien_US
dc.description.abstractA gold electrode was modified with electropolymerized films of 4-methoxyphenol by its oxidative polymerization from an alkaline solution by cyclic voltammetry. The modified electrode was then used to determine epinephrine (EP) in the presence of a high concentration of ascorbic acid (AA) by differential pulse voltammetry. The peak positions as well as relative sensitivity EP/AA were affected by the potential window used for the polymerization. For polymerization between 0 and 1.3 V, the peak potentials recorded in a phosphate buffer solution (pH = 7.2) were 516 and 312 mV vs. Ag/AgCl for EP and AA, respectively. In addition the effects of pH and the type of electrolyte on the linearity range and detection limit are investigated. The detection limit for 3s-test is 0.1 muM. The high selectivity and sensitivity for epinephrine was found to be due to charge discrimination/analyte accumulation.en_US
dc.identifier.doi10.1023/A:1016234219054
dc.identifier.endpage623en_US
dc.identifier.issn1061-9348
dc.identifier.issue7en_US
dc.identifier.scopus2-s2.0-0042994390en_US
dc.identifier.scopusqualityN/Aen_US
dc.identifier.startpage620en_US
dc.identifier.urihttps://doi.org/10.1023/A:1016234219054
dc.identifier.urihttps://hdl.handle.net/11616/93608
dc.identifier.volume57en_US
dc.identifier.wosWOS:000177015900011en_US
dc.identifier.wosqualityQ4en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherMaik Nauka/Interperiodicaen_US
dc.relation.ispartofJournal of Analytical Chemistryen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectConducting Polymer Electrodesen_US
dc.subjectFilm-Coated Electrodesen_US
dc.subjectElectrochemical-Behavioren_US
dc.subjectDopamineen_US
dc.subjectNeurotransmittersen_US
dc.subjectMembraneen_US
dc.subjectBrainen_US
dc.subjectOptimizationen_US
dc.titleSelective voltammetric detection of epinephrine in the presence of ascorbic acid at poly(4-methoxyphenol)-modified electrodeen_US
dc.typeArticleen_US

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