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Dinuclear 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 samples
dc.creator | Petković, Branka B. | |
dc.creator | Stanković, Dalibor | |
dc.creator | Milčić, Miloš K. | |
dc.creator | Sovilj, Sofija P. | |
dc.creator | Manojlović, Dragan D. | |
dc.date.accessioned | 2018-11-22T00:30:35Z | |
dc.date.available | 2018-11-22T00:30:35Z | |
dc.date.issued | 2015 | |
dc.identifier.issn | 0039-9140 | |
dc.identifier.uri | https://cherry.chem.bg.ac.rs/handle/123456789/1654 | |
dc.description.abstract | A 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. | en |
dc.publisher | Elsevier Science Bv, Amsterdam | |
dc.relation | info:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/45022/RS// | |
dc.relation | info:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/172030/RS// | |
dc.rights | restrictedAccess | |
dc.source | Talanta | |
dc.subject | Gallic acid | en |
dc.subject | Dinuclear copper(II) octaazamacrocyclic complex | en |
dc.subject | PVC matrix | en |
dc.subject | Voltammetric sensor | en |
dc.title | Dinuclear 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 samples | en |
dc.type | article | |
dc.rights.license | ARR | |
dcterms.abstract | Манојловић, Драган; Совиљ, С. П.; Петковиц, Б. Б.; Милчић, Милош; Станковић, Далибор; | |
dc.citation.volume | 132 | |
dc.citation.spage | 513 | |
dc.citation.epage | 519 | |
dc.identifier.wos | 000349278900068 | |
dc.identifier.doi | 10.1016/j.talanta.2014.09.025 | |
dc.citation.other | 132: 513-519 | |
dc.citation.rank | M21 | |
dc.identifier.pmid | 25476338 | |
dc.description.other | Peer-reviewed manuscript: [http://cherry.chem.bg.ac.rs/handle/123456789/3363] | |
dc.description.other | Supplementary material: [http://cherry.chem.bg.ac.rs/handle/123456789/3364] | |
dc.type.version | publishedVersion | en |
dc.identifier.scopus | 2-s2.0-84908408933 |