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Determination of thiourea using a carbon paste electrode decorated with copper oxide nanoparticles |
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| Authors: | Li Tian Ye Gao Libo Li Weibin Wu Ding Sun Juan Lu Tianjiao Li |
| Institution: | 1. College of Chemistry, Changchun Normal University, Changchun, 130032, People’s Republic of China |
| Abstract: | We report on a novel sensor for the electrochemical determination of thiourea (TU). It is based on an active carbon paste electrode modified with copper oxide nanoparticles. The modified electrode and the electrochemical properties of thiourea on its surface were investigated using cyclic voltammetry and differential pulse voltammetry. Under optimized conditions, the detection limit is 20 μg?L?1 of TU. The method was applied to the determination of thiourea in fruit juice, orange peel and industrial waste water. Cyclic voltammograms of ACPE (A), CuO/ACPE (B) and CuO/CPE (C) in pH 8 phosphate buffered saline. |
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