Electrodeposition of silver onto carbon graphite and their catalysis properties toward thiamethoxam reduction: application in food and beverage samples

被引：14
作者：
Ajermoun, N. [1 ]
Lahrich, S. [1 ]
Farahi, A. [1 ]
Bakasse, M. [2 ]
Saqrane, S. [1 ]
El Mhammedi, M. A. [1 ]
机构：
[1] Sultan Moulay Slimane Univ, Polydisciplinary Fac, Lab Chem Modeling & Environm Sci, Khouribga, Morocco
[2] Chouaib Doukkali Univ, Fac Sci, Organ Micropollutants Anal Team, El Jadida, Morocco
来源：
HELIYON | 2020年 / 6卷 / 12期
关键词：
Thiamethoxam; Silver particles; Electrodeposition; Graphite carbon electrode; ELECTRON-TRANSFER KINETICS; VOLTAMMETRIC DETERMINATION; AQUEOUS-MEDIUM; ELECTROCHEMICAL DETERMINATION; AROMATIC NITROCOMPOUNDS; CYCLIC VOLTAMMETRY; PASTE ELECTRODE; NITRO-COMPOUNDS; FILM ELECTRODE; URIC-ACID;
D O I：
10.1016/j.heliyon.2020.e05784
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
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 x 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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页数：11
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