离子选择电极是一种以电位法来测量溶液中某一特定离子的活度或浓度的指示电极。离子电极的方法检测范围宽 ,仪器操作简便 ,分析结果准确。但如何准确迅速地测定离子浓度 ,对未知浓度试样如何处理 ,如何消除干扰等 ,本文就这些问题以氟化物为例进行实验分析研究 ,以期找出某些 An ion-selective electrode is an indicator electrode that uses potentiometry to measure the activity or concentration of a particular ion in a solution. The method of the ion electrode has a wide detection range, the instrument is easy to operate, and the analysis result is accurate. However, how to measure the ion concentration accurately and rapidly, how to deal with the sample with unknown concentration and how to eliminate the interference, we take the fluoride as an example to carry on the experimental analysis and research on these problems in order to find some