【摘要】 本文报道了以奎宁碘化物与碘化铋形成的分子缔合物为电活性物 ,制备了一种新型的盐酸奎宁选择电极 ,电极的线性响应范围为 1 .0× 1 0 -1～ 1 .0× 1 0 -5mol/L,级差为 50 m V/PC,检测限为 7.5× 1 0 -6mol/L。p H在 3.80— 6.70范围内 ,电势随 p H变化不超过± 1 m 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更多还原

【Abstract】 Here we report a new PVC membrance quinine ion selective.This electrode is based on the association complex of BiI 3 and the quinine iodide.The electrod showed Nernst respone for quinine with a slope of 58 mV/pC over the concentration in the range of 1.0×10 -1 ～1.0×10 -5 mol/L.The detection limit is 7.5×10 -6 mol/L.While pH is at 3.80~6.70,the change of the electrode response dose not exceed ±1mV.The result of the determination of quinine in quinine hydrochloride is in agreement with that of pharmacopeia method.更多还原