Fatemeh Karimi*, Majede Bijad*, Mohammad Farsi, Amir Vahid, Hesam Asari-Bami, Yangping Wen and Mohammad Reza Ganjali Pages 172 - 176 ( 5 )
Background: Antioxidants are one of the important additives in food samples due to their role in protecting human cells against the effects of free radicals. The analysis of antioxidants is essential due to the role of antioxidants in improving body health.
Objective: A square wave voltammetric sensor was fabricated for the determination of tert-butylhydroxyanisole (TBHA) based on the application of CdO/SWCNTs and 1-methyl-3-butylimidazolium chloride as mediators for the modification of carbon paste electrode (MBCl/CdO/SWCNTs/CPE). The MBCl/CdO/SWCNTs/CPE improved the sensitivity of TBHA ~ 6.7 times and showed a linear dynamic range 0.07-600 µM with detection limit 0.02 µA for the analysis of TBHA. The pH investigation confirmed that electro-oxidation of TBHA occurred by exchanging two electrons and two protons. In addition, the MBCl/CdO/SWCNTs/CPE was used for determination of TBHA in food samples.
CdO/SWCNTs, Tert-butylhydroxyanisole, 1-methyl-3-butylimidazolium chloride, Voltammetric analysis, square wave voltammetric platform, food samples.
Department of Chemical Engineering, Laboratory of Nanotechnology, Quchan University of Technology, Quchan, Department of Agriculture, Sari Branch, Islamic Azad University, Sari, Department of Agriculture, Sari Branch, Islamic Azad University, Sari, Research Institute of Petroleum Industry, Tehran, Department of Agriculture, Sari Branch, Islamic Azad University, Sari, Institute of Functional Materials and Agricultural Applied Chemistry, Jiangxi Agricultural University, Nanchang 330045, Center of Excellence in Electrochemistry, School of Chemistry, College of Science, University of Tehran, Tehran