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dc.creatorPetkovic, B. B.
dc.creatorStanković, Dalibor
dc.creatorMilčić, Miloš K.
dc.creatorSovilj, Sofija P.
dc.creatorManojlović, Dragan D.
dc.date.accessioned2018-11-22T00:30:35Z
dc.date.available2018-11-22T00:30:35Z
dc.date.issued2015
dc.identifier.issn0039-9140
dc.identifier.urihttp://cherry.chem.bg.ac.rs/handle/123456789/1654
dc.description.abstractA novel efficient differential pulse voltammetric (DPV) method for determination gallic acid (GA) was developed by using an electrochemical sensor based on [Cu(2)tpmc](ClO4)(4) immobilized in PVC matrix and coated on graphite (CGE) or classy carbon rod (CGCE). The proposed method is based on the gallic acid oxidation process at formed [Cu(2)tpmcGA](3+) complex at the electrode surface. The complexation was explored by molecular modeling and DFT calculations. Voltammograms for both sensors, recorded in a HNO3 as a supporting electrolyte at pH 2 and measured in 2.5 x 10(-7) to 1.0 x 10(-4) M of GA, resulted with two linear calibration curves (for higher and lower GA concentration range). The detection limit at CGE was 1.48 x 10(-7) M, while at CGCE was 4.6 x 10(-6) M. CGE was successfully applied for the determination of the antioxidant capacity based on GA equivalents for white, rose and red wine samples. (C) 2014 Elsevier B.V. All rights reserved.en
dc.publisherElsevier Science Bv, Amsterdam
dc.relationinfo:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/45022/RS//
dc.relationinfo:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/172030/RS//
dc.rightsrestrictedAccess
dc.sourceTalanta
dc.subjectGallic aciden
dc.subjectDinuclear copper(II) octaazamacrocyclic complexen
dc.subjectPVC matrixen
dc.subjectVoltammetric sensoren
dc.titleDinuclear copper(II) octaazamacrocyclic complex in a PVC coated GCE and graphite as a voltammetric sensor for determination of gallic acid and antioxidant capacity of wine samplesen
dc.typearticle
dc.rights.licenseARR
dcterms.abstractМанојловић, Драган; Совиљ, С. П.; Петковиц, Б. Б.; Милчић, Милош; Станковић, Далибор;
dc.citation.volume132
dc.citation.spage513
dc.citation.epage519
dc.identifier.wos000349278900068
dc.identifier.doi10.1016/j.talanta.2014.09.025
dc.citation.other132: 513-519
dc.citation.rankM21
dc.identifier.pmid25476338
dc.type.versionpublishedVersionen
dc.identifier.scopus2-s2.0-84908408933
dc.identifier.rcubKon_2800


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