| 摘要 |
PURPOSE:To stabilize inter-liquid potential with a reference electrode of an open liquid junction system by forming a sample flow passage to a crank shape in a vertical direction and opening an inflow port for a reference electrode liquid on the vertical of the crank part of the sample flow passage. CONSTITUTION:A cell body 1 and the internal liquid sealing type reference electrode 2 consisting of the liquid film are mounted. A sample liquid inlet 3, a sample liquid outlet 4, a reference electrode liquid inlet 5, the sample flow passage 9 having the crank and reference electrode liquid flow passage 19 are provided. The aperture 9 of the flow passage 19 is provided on the vertical of the crank part of the sample flow passage 9. The fall of the reference electrode liquid having a large sp. gr. toward an ion electrode by passing the sample flow passage during measurement is prevented by constituting the electrode in such a manner; in addition, the arrival of the component such as, for example, blood cells, in the sample, at a permeable film 12 and the consequent fluctuation of the inter-liquid potential are prevented as well. |
