ZnO Nanoparticle Modified Carbon Paste Electrode as a Sensor for Electrochemical Determination of Tert-Butylhydroquinone in Food Samples

被引：0
作者：
Rahmanpour, Mahbobe S. [1 ]
Khalilzadeh, Mohammad A. [1 ]
机构：
[1] Islamic Azad Univ, Sari Branch, Dept Food Sci, Sari, Iran
来源：
ANALYTICAL & BIOANALYTICAL ELECTROCHEMISTRY | 2016年 / 8卷 / 07期
关键词：
Tert-butylhydroquinone; ZnO nanoparticles; Food sample analysis; Modified electrode;
D O I：
暂无
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
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 mu M. The detection limit for tert-butylhydroquinone was 0.7 mu M. The ZnO/NPs/CPE was used for the determination of tert-butylhydroquinone in food samples such as sesame and soybean oil.
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页码：922 / 930
页数：9
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