Electrochemical Sensing of Nitrofurazone and Semicarbazide on an Au-Ag Film Fabricating from a Deep Eutectic Solvent. Issue 10 (1st October 2022)

• Record Type: Journal Article
• Authors: Yeh, Min-Yu; Liu, Yan-Ru; Huang, Tsu-Hsuan; Chen, Yun-Hsuan; Hsieh, Yi-Ting
• Is Part Of: Journal of the Electrochemical Society. Volume 169:Issue 10(2022)
• Publication Date: 2022-10-01
• Subjects: Electrochemistry -- Periodicals; 541.3705
• DOI: 10.1149/1945-7111/ac992c
• Languages: English
• ISSNs: 0013-4651

Abstract

Abstract : A facile electrochemical sensor is reported for the highly selective and sensitive detection of nitrofurazone (NFZ) and its metabolites, semicarbazide (SC), by using an Au-Ag modified electrode. The Au-Ag film was produced on a Cu foil by electrodeposition in a choline chloride-urea-glycerol ternary deep eutectic solvent containing gold (III) ions and silver (I) ions. Cyclic voltammetry (CV) indicates that the co-deposition of Au-Ag would be feasible. The morphology, crystallinity, and composition of Au-Ag deposits were characterized via scanning electron microscopy (SEM), powder X-ray diffractometer, and X-ray photoelectron spectroscopy (XPS). Under the optimal condition, the Au-Ag modified electrode shows a wider linear concentration range of 1.99–643.49 μ M with a low detection limit of 0.2 μ M for NFZ. The corresponding linear range of SC is 7.94 to 482 μ M, and the detection limit is 1.01 μ M. It also demonstrated good anti-interference ability against various common interfering substances. Finally, the modified electrode was successfully applied in the real samples, and the average recoveries for NFZ and SC were 100.59% and 101.01%, respectively. The present electrochemical strategy is promising to broaden the practical electrochemical application in the environment.