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离子选择电极是一种根据物理化学原理直接测量分析组分的新工具,是一种以电位法来测量溶液中某一特殊离子活度的指示电极,它具有干扰少,稳定性好,灵敏度高,操作简便的特点。该方法既快而又不需破坏和分离被测样品组分,并能在连续自动基础上使用。目前在分析化学中应用广泛,发展迅速。由于存在于冶金废水中的硫化物性质复杂、不稳定,以及水体中的硫离子浓度变化范围大,因此,用一般分析方法很难得到满
The ion-selective electrode is a new tool for direct measurement and analysis of components according to the physico-chemical principle. It is an indicator electrode for measuring the activity of a specific ion in solution by potentiometric method. It has less interference, good stability and high sensitivity , Easy to operate features. The method is fast and without breaking and separating the components of the sample under test, and can be used on a continuous automatic basis. Currently in the analytical chemistry widely used, the rapid development. Due to the complex and unstable nature of the sulfides present in metallurgical wastewaters and the wide range of sulfur ion concentrations in the water, it is difficult to obtain full analytical results