Anodic Stripping Voltammetric Determination of Silver(I) in Water Using a 4-tert-Butyl-1(Ethoxycarbonylmethoxy)Thiacalix[4]Arene Modified Glassy Carbon Electrode

作者：Wang Fei^*; Xin Changzheng; Wu Yanju; Gao Yumei; Ye Baoxian

来源：Journal of Analytical Chemistry, 2011, 66(1): 60-65.

DOI：10.1134/S1061934811010047

• anodic stripping voltammetric
• silver(I)
• glassy carbon electrode

A glassy carbon electrode coated with film of 4-tert-butyl-1-(ethoxycarbonylmethoxy)thiacalix[4]arene is designed for the determination of trace amounts of Ag(+). Compared with bare glassy carbon electrode, the modified electrode can greatly improve the measuring sensitivity for Ag(+). Under the optimum experimental conditions, the modified electrode in B-R buffer solution (pH 4.5) shows a linear voltammetric response in the range of 5.0 x 10(-8)-3.0 x 10(-6) M with detection limit 1.0 x 10(-8) M for Ag(+). The high sensitivity, selectivity, and stability of modified electrode also demonstrate its practical application for a simple, rapid and economical determination of Ag(+) in water samples.

• 出版日期2011-1
• 单位河南工程学院; 郑州大学