| 摘要 |
PURPOSE:To restrict the fluctuation of temperature transmitted to an electrode to the minimum by providing a heat accumulator for absorbing fluctuation of the circumferential temperature of an electrode part and the temperature of liquid flowing to an electrode before either or both of the electrode and a comparison electrode forming a pair with it. CONSTITUTION:A specified quantity of sample (blood, urine, etc.) 2 in a sample cup 1 is sucked by a sample pump 4 through a sampling nozzle 3 which is movable horizontally and vertically, so a specified quantity of it is discharged to a diluting pot 5. At this time, a specified quantity of diluting liquid 7 is also discharged by a diluting pump 6 to the diluting pot 5 simultaneously, the diluted sample goes through a mixer 8 to an Na, Cl electrode 9, and it is combined with comparison electrode liquid 13 coming from another passage by a comparison electrode pump 10 through a heat accumulator 11 and a reference electrode 12 to flow into a waste liquid tank 14. In addition, the diluted liquid 7 flows from another passage through a heat accumulator 15 to the Na, K, Cl electrode 9. By thus providing the heat accumulators 11, 15, fluctuation of temperature transmitted to the electrodes 9, 12 can be restricted to the minimum. |
