Monitoring of Amaranth in Drinking Samples using Voltammetric Amplified Electroanalytical Sensor
Journal: Chemical Methodologies (Vol.6, No. 3)Publication Date: 2022-03-01
Authors : Zahra Mehdizadeh; Seyed-Ahmad Shahidi; Azade Ghorbani-HasanSaraei; Mohammad Bagher Limooei; Majedeh Bijad;
Page : 246-252
Keywords : Amaranth; Modified electrode; Sensor; electrochemical analysis; Nanocomposite;
Abstract
Electrochemical sensing of amaranth was performed by a voltammetric strategy in an aqueous solution. The paste electrode (PE) was modified with 1-methyl-3-butyl imidazolium bromide (MBIB) and Pt-CNTs nanocomposite and the MBIB/Pt-CNTs/PE was successfully used as a monitoring tool for sensing of amaranth. The MBIB/Pt-CNTs/PE accelerated the electron transfer in redox reaction of amaranth and improved its oxidation signal by about 4.82 fold. The MBIB/Pt-CNTs/PE measured this azo dye with a detection limit of 1.0 nM. In the final step, MBIB/Pt-CNTs/PE was employed for monitoring of amaranth drinking with an acceptable recovery data.
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Last modified: 2022-02-12 19:25:43