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制备了电活化的玻碳电极,利用循环伏安法研究了邻苯二酚和对苯二酚在该电极上的电化学行为,结果表明该电极对两者的氧化还原具有很好的电催化能力。在0.1 mol/L PBS(pH 7.0)中,采用示差脉冲伏安法对对苯二酚和邻苯二酚分别测定和同时测定,对苯二酚和邻苯二酚的氧化峰电流与其浓度分别在3.0×10-7～1.2×10-5 mol/L和1.0×10-7～1.2×10-5 mol/L范围内呈良好的线性关系,检测限分别为1.0×10-7和6.34×10-8mol/L(S/N=3)。该法已用于模拟废水样中对苯二酚和邻苯二酚的测定。
Electrochemical activation glassy carbon electrode was prepared. The electrochemical behavior of catechol and hydroquinone on the electrode was investigated by cyclic voltammetry. The results showed that the electrode had good electrocatalysis for the redox of both ability. In 0.1 mol / L PBS (pH 7.0), differential pulse voltammetry was used to measure and determine the hydroquinone and pyrocatechol, respectively. The oxidation peak currents of hydroquinone and pyrocatechol and their concentrations The linear range was 3.0 × 10-7 ~ 1.2 × 10-5 mol / L and 1.0 × 10-7 ~ 1.2 × 10-5 mol / L with detection limits of 1.0 × 10-7 and 6.34 × 10-8 mol / L (S / N = 3). This method has been used to simulate the determination of hydroquinone and catechol in wastewater samples.