Citation:
XU Guangri, FAN Shige, CHEN Changguo. Electrochemical Properties and Simultaneous Determination of Catechol,Resorcinol and Hydroquinone on Gold Electrode[J]. Chinese Journal of Applied Chemistry,
;2013, 30(5): 573-577.
doi:
10.3724/SP.J.1095.2013.20285
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Electrochemical behaviors of catechol(CAT),resorcinol(RE) and hydroquinone(HQ) in 0.5 mol/L sulfuric acid aqueous solution were studied using cyclic voltammetry.Voltammetric behaviors of CAT,Re and HQ in the coexisting system were studied using cyclic voltammetry and differential pulse voltammetry method. The results show that obvious separation effect is achieved under conditions of pH=0 (sulfuric acid),scan rate of 10 mV/s,and scan potential of 0~1.2 V(vs.Ag/Cl). Under optimal conditions,the detection limit was 3.9 × 10-6,3.9 × 10-6 and 7.8 × 10-6 mol/L for CAT,RE,and HQ,respectively,in mixture of three substances using differential pulse voltammetry. The method is applied in the analysis of synthesized samples,and the accuracy and precision well satisfy the requirements of the analysis.
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