【摘要】 以功能高分子为活性材料,制成PVC膜钆离子选择电极。其电位与钆离子活度的负对数成线性关系。电极斜率为52～59mV（室温）,对镨、钐、钕等离子有一定的选择性。内阻约为1.8MΩ,适宜的pH范围为5.2～6.1,检测下限为3.2×10^-6M,响应迅速。更多还原

【Abstract】 A PVC godolinium ion-selective electrode is constructed by using functional polymers as active materials. The resistance is about 1.8 MΩ. The electrode responds quickly and exhibits Nernstian response with-slopes of 52-59 mV （at room temperature） per decade at optimum pH 5.2—6.1 with a detection limit of 3.2·10^-6M. It has selectivity between gadolinium and praseodymium, samarium and neodymium.更多还原