Ion activity measuring device

摘要: An improvement of a device for measuring ion activity in liquid sample comprising at least pair ion-selective electrode sheets, liquid-guiding portions guiding reference and to each active surface the sheets respectively, bridge electrically connecting both liquids supplied on other is disclosed. Each sheet arranged such manner that placed upside down portion comprises horizontal passage conveying or from outside direction position just below electrode, being formed lower than electrode; provided with porous distributor which bent protrude upwardly up so conveyed can be brought into contact electrode.