碘离子选择电极在碘离子活度10~(-1)M—5×10~(-7)M的大范围内可给出Nernst线性响应关系,并能在许多其他离子存在下对碘离子具有高度选择性。它既可用于碘离子的直接测量,也能在电位滴定中作为终点指示者(其终点约有300毫伏的突跃)。在国外,碘离子选择电极作为商品出售(美Orion公司94—53,匈牙利OP-I-711等)。有机碘元素微量分析目前仍多采用氧瓶分解-汞液滴定法。其操作需在汞液 The iodine ion selective electrode provides a Nernst linear response over a wide range of iodide activity 10-1 M-5 x 10-7 M, and has the ability to iodide ions in the presence of many other ions Highly selective. It can be used both for the direct measurement of iodide ions and as an indicator of endpoint in potentiometric titration with an approximate 300 millivolt jump at the end. Abroad, iodide ion selective electrodes are sold as commodities (U.S. Orion 94-53, Hungary OP-I-711, etc.). Organic iodine microanalysis still use oxygen bottle decomposition - mercury titration method. Its operation requires mercury solution