使用鞣酸与六价铬形成的络合物为沉淀剂 ,使其与奎宁形成的分子缔和物为电活性物 ,制备了一种新型的全固态盐酸硅宁选择电极。电极的线性响应范围为 1.0× 10 - 1 ～ 1.0× 10 - 5 mol/L ,级差为 44m V/p C,检测限为 8.0× 10 - 6 mol/L,p H在 2 .94～ 5 .5 8范围内 ,电势随 p H变化不超过± 1m V。该电极制作简便 ,操作灵活 ,重现性好 ,结果与药典法比较无系统误差。 The complex of tannic acid and hexavalent chromium was used as the precipitating agent, and the molecular complex formed with quinine was used as the electroactive material. A novel all-solid-state silicon-on-silicon selective electrode was prepared. The linear response range of the electrode was 1.0 × 10-1 ~ 1.0 × 10-5 mol / L with a step difference of 44m V / p C, the detection limit was 8.0 × 10-6 mol / L and p H was 2.94-5. 5 8 range, the potential changes with p H does not exceed ± 1mV. The electrode has the advantages of simple manufacture, flexible operation, good reproducibility, and no systematic error compared with the pharmacopoeial method.