Voltammetric determination of tannic acid in beverages using pencil graphite electrode

Dai Long Vu, Bensu Ertek, Yusuf Dilgin and Libor Červenka
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Dai Long Vu: Art Faculty, Canakkale Onsekiz Mart University, Canakkale, Turkey
Bensu Ertek: Department of Chemistry, Science &
Yusuf Dilgin: Department of Chemistry, Science &
Libor Červenka: Department of Analytical Chemistry, Faculty of Chemical Technology, University of Pardubice, Pardubice, Czech Republic

Czech Journal of Food Sciences, 2015, vol. 33, issue 1, 72-76

Abstract: The pretreated pencil graphite electrode (Pre-PGE) prepared by a chronoamperometry technique was applied for the determination of tannic acid using anodic stripping differential pulse voltammetry. The currents obtained from voltammetry measurements at optimum conditions were linearly correlated with the concentration of tannic acid. Calibration curve was obtained for tannic acid in the concentration range of 5.0- 500 × 10-9 mol/l. The limit of detection was found to be 1.5 × 10-9 mol/l. The content of tannic acid in beverage samples determined with Pre-PGE was in good agreement with that obtained by the standard spectrophotometric method.

Keywords: carbon electrode; phenolic compound; stripping voltammetry (search for similar items in EconPapers)
Date: 2015
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlcjf:v:33:y:2015:i:1:id:221-2014-cjfs

DOI: 10.17221/221/2014-CJFS

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