Le Thi Huong Giang, Doan Thi Thu Trang, Dang Minh Huong Giang, Pham Thi Thanh Nhan, Nguyen Thi Mai, Do Trong Bang, Nguyen Thi Kim Thuong

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

[1] S. Opinion, Reconsideration of the Temporary ADI and Refined Exposure Assessment for Sunset Yellow FCF (E 110), EFSA J., Vol. 12, No. 7, 2014, pp. 1-39.
[2] Ministry of Health, Circular No. 24/2019/TT-BYT, August 30, 2019, Regulations on Management and Use of Food Additives, Hanoi, 2019.
[3] E. Y. Hashem, M. S. Saleh, N. O. A. A. Salahi, A. K. Youssef, Advanced Spectrophotometric Analysis of Sunset Yellow Dye E110 in Commercial Food Samples, Food Anal, Methods, Vol. 10, No. 4, 2017, pp. 865-875.
[4] Y. E. Unsal, M. Soylak, M. Tuzen, Column Solid-Phase Extraction of Sunset Yellow and Spectrophotometric Determination of its use in Powdered Beverage and Confectionery Products, Int. J. Food Sci. Technol., Vol. 47, No. 6, 2012, pp. 1253-1258.
[5] J. Wang, B. Yang, H. Wang, P. Yang, Y. Du, Highly Sensitive Electrochemical Determination of Sunset Yellow Based on Gold Nanoparticles/Graphene Electrode, Anal, Chim, Acta, 893, 2015, pp. 41-48.
[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.
[9] A. Islam et al. , Determination of Sunset Yellow in Different Brands of Orange Jellies of Bangladesh by HPLC, Ital. J. Food Sci., Vol. 31, No. 1, 2019, pp. 184-194.
[10] J. Mocak et al., A Statistical Overview of Standard (IUPAC and ACS) and New Procedures for Determining the Limits of Detection and Quantification: Application to Voltammetric and Stripping Techniques, Pure and Appl, Chern., Vol. 69, No. 2, 1997, pp. 297-328.