Electrochemical Study of Sunset Yellow and its Determination in Soft Drink by Differential Pulse Adsorptive Stripping Voltammetry Using Ag-ErGO/GCE
Main Article Content
Abstract
The electrochemical behavior of sunset yellow on the glassy carbon electrode modified with silver and reduced graphene oxide has been investigated by cyclic and differential pulse adsorptive stripping voltammetry. The electrochemical behavior of sunset yellow was reversible and adsorptive on the working electrode. The optimal conditions were obtained as follows: Britton-Robinson (BR) buffer at pH 8.0; adsorption potential 0.4 V; adsorption time 50 s; sweep rate 50 mV/s; linearity range from 10-7 M to 10-6 M; the limits of detection and quantitation were 2.5 × 10-8 M and 8.3 × 10-8 M, respectively. The procedure was successfully applied to determine sunset yellow in soft drink samples.
Keywords:
Voltammetry, Ag-ErGO/GCE, reduced graphene oxide, sunset yellow.
References
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[6] X. Qiu et al., An Enhanced Electrochemical Platform Based on Graphene Oxide and Multi-Walled Carbon Nanotubes Nanocomposite for Sensitive Determination of Sunset Yellow and Tartrazine, Food Chem., Vol. 190, 2016, pp. 889-895.
[7] P. S. Dorraji, F. Jalali, Electrochemical Fabrication of a Novel ZnO/cysteic Acid Nanocomposite Modified Electrode and its Application to Simultaneous Determination of Sunset Yellow and Tartrazine, Food Chem.,
Vol. 227, 2017, pp. 73-77.
[8] F. Z. Mazdeh et al., Determination of 8 Synthetic Food Dyes by Solid Phase Extraction and Reversed-Phase High Performance Liquid Chromatography, Trop. J. Pharm, Res., Vol. 15, No. 1, 2016, pp. 173-181.
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