Ion selective electrode

摘要

An integral ion selective electrode for the analysis of a potassium ion comprising: (I) a support; (II) an electroconductive metal layer such as a silver metal layer; (III) a layer of a water-insoluble salt of said metal such as a silver chloride layer; (IV) an electrolyte layer which comprises crystalline electrolyte salts of cations including a potassium ion and a sodium ion with the same anions as the anion of the water-insoluble salt, said electrolyte layer being substantially free from a binder; and (V) a potassium ion selective layer.