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利用液体石蜡作粘合剂制成 CPE,根据锑与茜素络合剂生成的络合物在 CPE上的吸附特性 ,考察了最佳底液条件 ,共存离子的影响 ,测定了电活性络合物的组成 ,探讨了电极反应机理。方法已用于水样中锑的测定。检出限为 4×1 0 -9mol/L。
CPE was prepared by using liquid paraffin as binder. According to the adsorption characteristics of the complex formed by antimony and alizarin complexing agent on CPE, the influence of the optimum conditions of bottom solution and coexisting ions was investigated. The electroactive complex The composition of the material, discussed the electrode reaction mechanism. The method has been used for the determination of antimony in water samples. The detection limit is 4 × 10 -9 mol / L.