RESPONSIVE GLASS MEMBRANE FOR ION-SELECTIVE ELECTRODE, AND ION-SELECTIVE ELECTRODE

摘要

A responsive glass membrane (3) for ion-selective electrodes which has semiconductivity and excellent responsiveness to ions, and an ion-selective electrode (1) provided with the glass membrane. The glass membrane comprises an oxide glass containing Me having an oxidation number of +n and Me' having an oxidation number of +(n±m) (Me and Me' represent transition metals belonging to the d-block elements and may be the same or different; n is an integer of 1 or larger; and m is an integer of 1-3) in an (Me having an oxidation number of +n)/(Me' having an oxidation number of +(n±m)) molar ratio of 0.0001-0.6.