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Voltammetric determination of tannic acid in beverages using pencil graphite electrode

Author

Listed:
  • 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)

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.

Suggested Citation

  • Dai Long VU & Bensu ERTEK & Yusuf DILGIN & Libor ČERVENKA, 2015. "Voltammetric determination of tannic acid in beverages using pencil graphite electrode," Czech Journal of Food Sciences, Czech Academy of Agricultural Sciences, vol. 33(1), pages 72-76.
    • Handle: RePEc:caa:jnlcjf:v:33:y:2015:i:1:id:221-2014-cjfs
    DOI: 10.17221/221/2014-CJFS
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