Investigation and comparison of the electrochemical behavior of some organic and biological molecules at various conducting polymer electrodes

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dc.authoridERDOGDU, GAMZE/0000-0002-8114-6946
dc.authorwosidERDOGDU, GAMZE/ABG-7776-2020
dc.contributor.authorErdogdu, G
dc.contributor.authorKaragozler, AE
dc.date.accessioned2024-08-04T20:13:28Z
dc.date.available2024-08-04T20:13:28Z
dc.date.issued1997
dc.departmentİnönü Üniversitesien_US
dc.description.abstractElectrodes modified by the electrodepozition of conducting organic polymers such as poly(3-methylthiophene)(PMT), polypyrrole (PPY) and polyaniline (PAN) were used as chemical sensors for voltammetric analysis and flow injection detection of some organic and biological molecules. The electrochemical behaviors of catechol, ascorbic acid, hydroquinone, dopamine, epinephrine, acetaminophen and p-aminophenol were examined by differential pulse voltammetry. The electrochemical behavior of these molecules at different electrodes was compared and the effects on behavior of electrolyte type and its pH and the film thickness were systematically examined. The results showed that the proposed modified surface catalyzes the oxidation of these compounds. Electrocatalytic 'efficiency' decreases in order of poly-3-methylthiophene, polypyrrole and polyaniline. Voltammetric peak positions were affected by the nature of the electrolyte and its pH. Also, the effect of increasing film thickness was to observe increased peak heights. Polymer coated electrodes were also used in an amperometric detector for flow injection analysis of most of the these compounds. The responses of the polymer electrode were 5-15 times larger as compared with those of bare platinum. PMT showed improved performance as an amperometric detector for flow injection analysis systems over other types of polymer electrodes. Detection limits as low as 10(-8)-10(-9) M were achieved using the PMT, compared with 10(-6)-10(-8) M using platinum electrodes In the flow injection analysis, with increasing molecular weight of analyte molecules was to observe decreased peak heights. (C) 1997 Elsevier Science B.V.en_US
dc.identifier.doi10.1016/S0039-9140(96)02196-0
dc.identifier.endpage2018en_US
dc.identifier.issn0039-9140
dc.identifier.issue11en_US
dc.identifier.pmid18966947en_US
dc.identifier.scopus2-s2.0-0142247426en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage2011en_US
dc.identifier.urihttps://doi.org/10.1016/S0039-9140(96)02196-0
dc.identifier.urihttps://hdl.handle.net/11616/93645
dc.identifier.volume44en_US
dc.identifier.wosWOS:A1997XX57000012en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.publisherElsevier Science Bven_US
dc.relation.ispartofTalantaen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectbiologicalen_US
dc.subjectelectrochemicalen_US
dc.subjectorganicen_US
dc.subjectpolymeren_US
dc.titleInvestigation and comparison of the electrochemical behavior of some organic and biological molecules at various conducting polymer electrodesen_US
dc.typeArticleen_US

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