Title of article
ZnO Nanoparticle Modified Carbon Paste Electrode as a Sensor for Electrochemical Determination of Tert-Butylhydroquinone in Food Samples
Author/Authors
Rahmanpour, Mahbobe S Department of Food Science - Sari Branch - Islamic Azad University , Khalilzadeh, Mohammad A Department of Food Science - Sari Branch - Islamic Azad University
Pages
9
From page
922
To page
930
Abstract
A fast response voltammetric sensor based on ZnO nanoparticles (ZnO/NPs) carbon paste electrode (ZnO/NPs/CPE) is suggested for the determination of tert-butylhydroquinone in the aqueous buffer solution. ZnO nanoparticles synthesized by direct chemical precipitation method and characterized with X-ray diffraction (XRD) method. In the second step, application of the ZnO/NPs for the preparation of modified carbon paste electrode was investigated. At the optimum condition (pH 7.0), the oxidation signals of tert-butylhydroquinone increased linearly with its concentration in the ranges of 1.0–750 μM. The detection limit for tert-butylhydroquinone was 0.7 μM. The ZnO/NPs/CPE was used for the determination of tert-butylhydroquinone in food samples such as sesame and soybean oil
Keywords
Tert-butylhydroquinone , ZnO nanoparticles , Food sample analysis , Modified electrode
Journal title
Astroparticle Physics
Serial Year
2016
Record number
2418729
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