Please use this identifier to cite or link to this item: http://hdl.handle.net/1822/2232

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dc.contributor.authorBento, M. Fátima-
dc.contributor.authorGeraldo, M. Dulce-
dc.contributor.authorMontenegro, M. I.-
dc.date.accessioned2005-06-16T10:10:22Z-
dc.date.available2005-06-16T10:10:22Z-
dc.date.issued1999-04-
dc.identifier.citation"Analytica chimica acta". 385 (1999) 365-371.eng
dc.identifier.issn0003-2670por
dc.identifier.urihttp://hdl.handle.net/1822/2232-
dc.description.abstractSteady state voltammetric currents of both neutral and charged species obtained at microelectrodes are affected by the medium composition. Experiments carried out in N,N-dimethylformamide (DMF) and toluene/DMF mixtures for the reduction of diciano(fluoren-9-ylidene)methane and the methylviologen cation and for the oxidation of ferrocene, in the presence of different electrolyte concentrations indicate that both viscosity of the solution and mass transport by migration may have a strong effect on the measured limiting currents. These observations are particularly important in electroanalysis since the appropriate choice of the medium may substantially improve both the sensitivity and the detection limits of the electrochemical method.eng
dc.description.sponsorshipFEDER. PRAXIS/2/2.1/QUI /260/94.por
dc.language.isoengeng
dc.publisherElseviereng
dc.rightsopenAccesseng
dc.subjectMicroelectrodeseng
dc.subjectDiffusion coefficienteng
dc.subjectViscosityeng
dc.subjectMigrationeng
dc.titleEffect of the medium composition on the current of steady state voltammograms of neutral and charged species in dimethylformamide/toluene mixtureseng
dc.typearticleeng
dc.peerreviewedyeseng
oaire.citationStartPage365por
oaire.citationEndPage371por
oaire.citationIssue1-3por
oaire.citationVolume385por
dc.identifier.doi10.1016/S0003-2670(98)00698-9por
dc.subject.wosScience & Technologypor
sdum.journalAnalytica Chimica Actapor
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