钾离子选择电极已获得广泛应用,国内试制与生产的钾离子电极均以王冠化合物为活性材料,国外则是采用缬氨霉素为活性材料者较多。为了比较两种电极的性能,我们对兰州化物所、青海盐湖所及泰县无线电厂试制的以二叔丁基二苯并—30—王冠—10为活性材料的7601型 PVC 膜钾离子电极与荷兰菲利甫(Philips)公司以缬氨霉素为活性材料的液体膜钾离子电极的主要性能进行了对照试验,现将试验条件及结果报告如下。 Potassium ion selective electrode has been widely used, the domestic trial production and production of potassium ion-based compounds are active compounds crown, abroad is the use of valinomycin as active material are more. In order to compare the performance of the two kinds of electrodes, we made a comparison between 7601 PVC membrane potassium ion electrode with di-tert-butyldibenzo-30-diacetate-10 as active material and trial production of Lanzhou Institute of Chemical Industry, Qinghai Salt Lake and Taixian Radio Factory The Netherlands Philips company to valinomycin active material of the liquid membrane potassium ion electrode performance of the main control experiments, the test conditions and results are reported as follows.