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Monitoring of Amaranth in Drinking Samples using Voltammetric Amplified Electroanalytical Sensor

Journal: Chemical Methodologies (Vol.6, No. 3)

Publication Date:

Authors : ; ; ; ; ;

Page : 246-252

Keywords : Amaranth; Modified electrode; Sensor; electrochemical analysis; Nanocomposite;

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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.

Last modified: 2022-02-12 19:25:43