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铯离子选择电极研制,国外曾报道过四苯硼铯液膜型、冠醚—PVC 膜型和非均相固膜型等类型。但四苯硼铯—PVC 膜铯电极未见文献报道。本文在离子缔合型阴离子选择电极研究的基础上,报道一种以四苯硼铯为活性物质的PVC 膜铯电极——离子缔合型阳离子电极。经过活性剂、溶剂、增塑剂的筛选试验和膜配方配比试验、确定膜的最佳组成为:四苯硼铯的硝基苯饱和溶液50%、邻苯二甲酸二丁酯30%、聚氯乙烯20%。
Cesium ion selective electrode development, foreign countries have reported tetracyclic boron cesium liquid membrane, crown ether-PVC membrane and heterogeneous solid film type and other types. But tetraphenyl boron cesium-PVC film cesium electrode has not been reported in the literature. Based on the research of ion-association anion selective electrode, a PVC membrane cesium electrode-ion association type cation electrode with tetraphenyl boron as active material was reported. After the active agent, solvent and plasticizer screening test and membrane formula matching test, the optimum composition of the membrane was determined as follows: 50% of nitrobenzene saturated solution of tetraphenyl boron cesium, 30% of dibutyl phthalate, PVC 20%.