| 摘要 |
PURPOSE:To prevent silver surfaces from corroding even when an electrode comprising silver layers, silver halide layers and an ion selective layer laminated on a support is preserved for a long period and to enable stable potential measurement by providing the ion selective layer not in contact with the silver layers. CONSTITUTION:A V-shaped insulating groove 12 is formed at the center of the longitudinal direction of a support 11 and silver layers 13, 13 are laid on the upper surface of the support 11 with the insulating groove 12 and its nearby portion uncovered. Silver halide layers 14, 14 are laid on the overall upper surfaces of the silver layers 13, 13 with the outside end portion b of each layer 13 uncovered. An ion selective layer 15 is laid over the overall surfaces of the silver halide layers 14, 14 with the outside end portion c of each silver halide layer 14, 14 uncovered. Therefore, the ion selective layer 15 does not make contact with the silver layers 13, 13, so preventing corrosion of the silver layers 13, 13. |
