| 摘要 |
This present invention provides a reference electrode that can trap the silver ions and the chloro complex ions leaching to the internal filling solution (2) so that the blocking of the liquid junction can be prevented. This present invention includes an internal electrode (3) made of silver (4) and silver chloride (4a) being provided in an internal filling solution (2); and an inner tube (6) which houses, in the order from top to bottom, the internal electrode (3), an inorganic cation exchanger (7) for trapping, silver ions and/or chloro complex ions leaching from the internal electrode (3), and a ceramic member (8) for preventing the diffusion of the silver ions and/or the chloro complex ions to the internal filling solution (2), wherein the inner tube (6) is immersed in the internal filling solution (2). <IMAGE> |
