应用组合法将壳聚糖、石墨粉以及石蜡油按一定比例调和制成壳聚糖碳糊修饰电极,该修饰电极对I-的电极反应具有良好的促进作用.详细研究了I-在该修饰电极上的阳极溶出伏安特性,并对相关机理进行了探讨.实验表明,修饰电极在pH为4.5的0.1mol/LKCl溶液中对I-具有良好的吸附性和选择性,电极响应灵敏.其阳极溶出峰电流在5.0×10-6mol/L～2.0×10-3mol/LI-浓度范围内呈良好线性关系,检出下限达2.0×10-7mol/L.将该法应用于碘酒中碘含量的测定,取得较好的结果,7次平行样品分析结果的相对标准偏差为4.3%,样品回收率范围为94.5%～100.2%. Chitosan, graphite powder and paraffin oil were reconciled to some extent by chitosan, carbon paste modified electrode and the modified electrode had a good promoting effect on the electrode reaction of I-.It was studied in detail that I- The results showed that the modified electrode had good adsorption and selectivity for I-in 0.1mol / L KCl solution at pH 4.5, and the electrode was sensitive The peak current of anodic dissolution showed a good linearity in the concentration range of 5.0 × 10-6mol / L to 2.0 × 10-3mol / L, the detection limit was 2.0 × 10-7mol / L. This method was applied to iodine in iodine The results showed that the relative standard deviation (RSD) of the seven parallel samples was 4.3%, and the recovery range was 94.5% ~ 100.2%.