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dc.contributor.authorTeixeira, Marcos F. S.-
dc.contributor.authorDadamos, Tony R. L.-
dc.identifier.citationProceedings of The Eurosensors Xxiii Conference. Amsterdam: Elsevier B.V., v. 1, n. 1, p. 297-300, 2009.-
dc.description.abstractAn amperometric dipyrone sensor based on a polymeric nickel-salen (salen = N,N'-ethylenebis(salicydeneiminato)) film coated platinum electrode was developed. The sensor was constructed by electropolymerization of nickel-salen complex at a platinum electrode in acetonitrile/tetrabuthylamonium perchlorate by cyclic voltammetry. After cycling the modified electrode in a 0.50 mol L-1 KCl solution, the estimated surface concentration was found to be equal to 1.29 x 10(-9) mol cm(-2). This is a typical behavior of an electrode surface immobilized with a redox couple that can usually be considered as a reversible single-electron reduction/oxidation of the nickel(II)/nickel(III) couple. A plot of the anodic current versus the dipyrone concentration for chronoamperometry (potential fixed = +0.50 V) at the sensor was linear in the 4.7 x 10(-6) to 1.1 x 10(-4) mol L-1 concentration range and the concentration limit was 1.2 x 10(-6) mol L-1. The proposed electrode is useful for the quality control and routine analysis of dipyrone in pharmaceutical formulations.en
dc.publisherElsevier B.V.-
dc.sourceWeb of Science-
dc.subjectmodified electrodeen
dc.subjectnickel-salen polymeren
dc.subjectamperometric detectionen
dc.subjectdipyrone analysisen
dc.titleAn electrochemical sensor for dipyrone determination based on nickel-salen film modified electrodeen
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)-
dc.description.affiliationUniv State São Paulo UNESP, Dept Phys Chem & Biol, Fac Sci & Technol, Presidente Prudente, SP, Brazil-
dc.description.affiliationUnespUniv State São Paulo UNESP, Dept Phys Chem & Biol, Fac Sci & Technol, Presidente Prudente, SP, Brazil-
dc.rights.accessRightsAcesso aberto-
dc.relation.ispartofProceedings of The Eurosensors Xxiii Conference-
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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