To provide an ion sensor suitable for disposal which is formed by making an ion sensing polar and a reference polar to be integral and can measure the ion concentration through easy and simple operation.
An ion sensor 1 is provided with, on single supporting substrate, a solid-state ion sensing polar 3 using a solid electrolyte, a reference polar 4 including a water absorbing member, an electrolytic solution accumulating part 8 which is filled with an electrolytic solution 6 by a damageable diaphragm 5, a movable seeping member 7 including a needle-like part made of porous material, and a dispersing member 9 which disperses a dropped liquid to be tested and allows it to be brought into contact with a seeping electrolytic solution through the seeping member. When the ion concentration is subjected to measurement, the member 7 is penetrated into the diaphragm 5 to allow the solution 6 to seep therefrom, and after a liquid to be tested is dropped, it is partly dispersed on the member 9 and brought into contact with the electrolytic solution.
| JP6337448 | Flow type electrode device |
TOKUMOTO JUNICHI
HAYASHI CHIE
OKUYAMA MASAHIKO
HORIBE NAOKO
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