铋离子选择电极的研制及应用报导甚少。本文报导了季铵盐与四碘络铋离子缔合物为活性物质的PVC膜四碘络铋离子选择电极。电活性物质的制备取一定量的季铵盐,用氯仿使之溶解,转入60毫升分液漏斗中,用BiI_4~-溶液(0.2MBi~(3+)溶液加1.2MHI溶液,使形成BiI_3沉淀恰好溶解)反复萃取4—5次,静置分层后将 Bismuth ion selective electrode development and application of little reported. This paper reports the PVC membrane tetraiodide bismuth ion selective electrode with quaternary ammonium salt and tetraiodide complex bismuth ion as active materials. Preparation of electroactive substances A certain amount of quaternary ammonium salt was taken and dissolved in chloroform. The mixture was transferred to a 60 ml separatory funnel and 1.2 MHI solution was added with BiI_4 ~ solution (0.2 MBi ~ (3+)) to form BiI_3 Precipitation just dissolved) repeated extraction 4-5 times, after standing layered