This disclosure provides an ion-selective electrode (2 and 3) offering enhanced in simultaneous repeatability. The ion-selective electrode is composed of internal electrodes being coated with an ion-selective membrane comprising a binder resin, an ionophore and a dielectric material having a dielectric constant of 10 or more. A test piece (100) comprising the ion-selective electrode and a liquid receiving section (40S, 40R) is further disclosed. The ion-selective electrode is provided with: a pair of internal electrodes (20A-20F); and an ion-selective membrane (32A-32F) which is provided at respective positions corresponding to the internal electrodes.
本公开提供了一种离子选择电极(2 和 3),可同时提高重复性。离子选择电极由内部电极和离子选择膜组成,离子选择膜由粘合剂
树脂、离子团和介电常数大于等于 10 的介电材料组成。此外,还公开了由离子选择电极和液体接收部分(40S、40R)组成的测试片(100)。离子选择电极具有:一对内部电极(20A-20F);以及一个离子选择膜(32A-32F),该膜设置在与内部电极相对应的各个位置上。