A New Nanostructure Square Wave Voltammetric Platform for Determination of Tert-butylhydroxyanisole in Food Samples

摘要

Background: Antioxidants are one of the important additives in food samples due to theirrole in protecting human cells against the effects of free radicals. The analysis of antioxidants isessential 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-butylimidazoliumchloride as mediators for the modification of carbon paste electrode (MBCl/CdO/SWCNTs/CPE). TheMBCl/CdO/SWCNTs/CPE improved the sensitivity of TBHA ~ 6.7 times and showed a linear dynamicrange 0.07-600 μM with detection limit 0.02 μA for the analysis of TBHA. The pH investigation confirmedthat 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.