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
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2015
Authors
Petković, Branka B.Stanković, Dalibor
Milčić, Miloš K.
Sovilj, Sofija P.
Manojlović, Dragan D.
Article (Published version)
Metadata
Show full item recordAbstract
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.
Keywords:
Gallic acid / Dinuclear copper(II) octaazamacrocyclic complex / PVC matrix / Voltammetric sensorSource:
Talanta, 2015, 132, 513-519Publisher:
- Elsevier Science Bv, Amsterdam
Funding / projects:
- Multiscale structuring of polymer nanocomposites and functional materials based on different precursors (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45022)
- Application of advanced oxidation processes and nanostructured oxide materials for the removal of pollutants from the environment, development and optimisation of instrumental techniques for efficiency monitoring (RS-MESTD-Basic Research (BR or ON)-172030)
Note:
- Peer-reviewed manuscript: http://cherry.chem.bg.ac.rs/handle/123456789/3363
- Supplementary material: http://cherry.chem.bg.ac.rs/handle/123456789/3364
DOI: 10.1016/j.talanta.2014.09.025
ISSN: 0039-9140
PubMed: 25476338
WoS: 000349278900068
Scopus: 2-s2.0-84908408933
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Institution/Community
Hemijski fakultet / Faculty of ChemistryTY - JOUR AU - Petković, Branka B. AU - Stanković, Dalibor AU - Milčić, Miloš K. AU - Sovilj, Sofija P. AU - Manojlović, Dragan D. PY - 2015 UR - https://cherry.chem.bg.ac.rs/handle/123456789/1654 AB - 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. PB - Elsevier Science Bv, Amsterdam T2 - Talanta T1 - 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 VL - 132 SP - 513 EP - 519 DO - 10.1016/j.talanta.2014.09.025 ER -
@article{ author = "Petković, Branka B. and Stanković, Dalibor and Milčić, Miloš K. and Sovilj, Sofija P. and Manojlović, Dragan D.", year = "2015", 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.", publisher = "Elsevier Science Bv, Amsterdam", journal = "Talanta", 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", volume = "132", pages = "513-519", doi = "10.1016/j.talanta.2014.09.025" }
Petković, B. B., Stanković, D., Milčić, M. K., Sovilj, S. P.,& Manojlović, D. D.. (2015). 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. in Talanta Elsevier Science Bv, Amsterdam., 132, 513-519. https://doi.org/10.1016/j.talanta.2014.09.025
Petković BB, Stanković D, Milčić MK, Sovilj SP, Manojlović DD. 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. in Talanta. 2015;132:513-519. doi:10.1016/j.talanta.2014.09.025 .
Petković, Branka B., Stanković, Dalibor, Milčić, Miloš K., Sovilj, Sofija P., Manojlović, Dragan D., "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" in Talanta, 132 (2015):513-519, https://doi.org/10.1016/j.talanta.2014.09.025 . .