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dc.creatorLakić, Mladen
dc.creatorVukadinović, Aleksandar
dc.creatorKalcher, Kurt
dc.creatorNikolić, Aleksandar S.
dc.creatorStanković, Dalibor M.
dc.date.accessioned2018-03-01T17:12:49Z
dc.date.available2018-03-01T17:12:49Z
dc.date.issued2016
dc.identifier.issn0039-9140 (print)
dc.identifier.issn1873-3573 (electronic)
dc.identifier.urihttp://vinar.vin.bg.ac.rs/handle/123456789/1292
dc.description.abstractThis work presents the simultaneous determination of catechol (CC) and hydroquinone (HQ), employing a modified carbon paste electrode (CPE) with ferrite nanomaterial. Ferrite nanomaterial was doped with different amount of cobalt and this was investigated toward simultaneous oxidation of CC and HQ. It was shown that this modification strongly increases electrochemical characteristics of the CPE. Also, electrocatalytic activity of such materials strongly depends on the level of substituted Co in the ferrite nanoparticles. The modified electrodes, labeled as CoFerrite/CPE, showed two pairs of well-defined redox peaks for the electrochemical processes of catechol and hydroquinone. Involving of ferrite material in the structure of CPE, cause increase in the potentials differences between redox couples of the investigated compounds, accompanied with increases in peaks currents. Several important parameters were optimized and calibration curves, with limits of detection (LOD) of 0.15 and 0.3 mu M for catechol and hydroquinone, respectively, were constructed by employing amperometric detection. Effect of possible interfering compounds was also studied, and proposed method was successfully applied for CC and HQ quantification in real samples.en
dc.relationinfo:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/172030/RS//
dc.relationinfo:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/172035/RS//
dc.rightsrestrictedAccessen
dc.sourceTalantaen
dc.subjectCobalt-ferriteen
dc.subjectAmperometryen
dc.subjectModified electrodeen
dc.subjectElectrochemistryen
dc.titleEffect of cobalt doping level of ferrites in enhancing sensitivity of analytical performances of carbon paste electrode for simultaneous determination of catechol and hydroquinoneen
dc.typearticleen
dcterms.abstractКалцхер, Курт; Вукадиновић Aлександар; Лакиц, Младен; Николиц, Aлександар С.; Станковић Далибор;
dc.citation.volume161
dc.citation.spage668
dc.citation.epage674
dc.identifier.wos000386989500086
dc.identifier.doi10.1016/j.talanta.2016.09.029
dc.citation.rankM21
dc.identifier.pmid27769463
dc.identifier.scopus2-s2.0-84988012855


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