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在实验室研究或工业流程监控中,一般均采用玻璃PH电极来测量pH。但玻璃电极不能用于含氟化物的酸性溶液,在强碱性溶液,它也有不同程度的钠干扰,因此,研究其他类型的pH膜电极正逐渐受到人们的重视。为了解决国内生产实际中的有关分析问题,我们系统研究了不同类型的pH电极。本文重点介绍离子交换树脂膜电极的研究结果。仪器和试剂仪器:Accumet 750选择性离子自动分析仪(Fisher Co.美国),709 YP-24型粉末
In laboratory studies or industrial process monitoring, glass pH electrodes are commonly used to measure pH. However, the glass electrode can not be used in acid solution containing fluoride. In strong alkaline solution, it also has different degree of sodium interference. Therefore, other types of pH electrode are being researched gradually. In order to solve the relevant analytical problems in the domestic production practice, we systematically studied different types of pH electrodes. This article focuses on ion exchange resin membrane electrode research results. Instruments and Reagents Instruments: Accumet 750 Selective Ion Analyzer (Fisher Co., USA), Model 709 YP-24 powder