Keywords
Dyes, Voltammetry, Metal oxides, Oxidation, Soft drinks, Juices.
How to Cite
Mohammad F. Khanfar*, Eyad S. M. Abu-Nameh*, Nawal Al Azizi, Rund Abu Zurayk, Aya Khalaf, Munib M. Saket and Nasim Alnuman , M. F. K. E. S. M. A.-N. N. A. A. R. A. Z. A. K. M. M. S. and N. A. . (2021). Electrochemical Determination of Sunset Yellow and Tartrazine at Carbon Electrodes Modified by Fe-Zr Oxide. Jordan Journal of Chemistry (JJC), 15(3), 119–126. Retrieved from https://jjc.yu.edu.jo/index.php/jjc/article/view/448
Abstract
An electrochemical probe, highly sensitive for the detection of two colorants; sunset yellow (SY) and tartrazine (TZ), was examined. The probe was fabricated by modifying carbon electrodes with an iron-zirconium binary transition metal oxide, Fe2Zr2O7. In the presence of the oxide, SY and TZ exhibit well resolved oxidation peaks at 0.80 and 1.0 V, respectively, in pH 2.00 buffer solution. The developed method exhibits linear response in the range 1.9×10–5– 2.7×10–4 M for both SY and TZ. The corresponding limits of detection were found to be 5.7×10–6 M for SY and 1.3×10–5 M for TZ.