Ajermoun N, Lahrich S, Farahi A, Bakasse M, Saqrane S, El Mhammedi MA. Electrodeposition of silver onto carbon graphite and their catalysis properties toward thiamethoxam reduction: application in food and beverage samples.
Heliyon 2020;
6:e05784. [PMID:
33376826 PMCID:
PMC7758523 DOI:
10.1016/j.heliyon.2020.e05784]
[Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 10/18/2020] [Accepted: 12/16/2020] [Indexed: 12/26/2022] Open
Abstract
The purpose of this paper is the electrodeposition of silver particles on graphite electrode (Ag@GrCE) using chronoamperometry and the use of this electrode for the determination of thiamethoxam. The electrode was prepared by chronoamperometry and characterized by X-Ray diffraction (XRD), fourier transform infrared spectroscopy (FT-IR), EDX analysis and electrochemical impedance spectroscopy. The obtained electrode exhibits excellent electrocatalytic activity toward thiamethoxam reduction. The voltammetric response was linear as function of TXM concentration with a limit of detection around to 1.92 × 10−6 mol L−1. The proposed electrode was successfully used to analyze thiamethoxam residue in some food samples including orange and tomato juices.
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