| 摘要 |
PURPOSE: To provide an ion selective electrode measuring apparatus excellent in the thermal response of electrodes and suitable for reducing the fluctuations of formed electromotive force by temp. CONSTITUTION: A thermostatic part 1 contains a thermostatic jacket 2 and a heat transfer part 3 and the heat transfer part 3 supports electric terminals 7, 8 so as to be capable of transferring heat. An electrode part 9 is equipped with the comparison electrode 13 coming into contact with the comparison electrode soln. flowing through a passage 10 and the ion selective electrode 14 for the measuring electrode coming into contact with the measuring soln. flowing through a passage 11 and further contains contact elements 19, 20. One of the contact element 19 is connected to the electrode 13 and the other end thereof comes into contact with the electric terminal 7. Each one end of the contact elements 20 is connected to the ion selective electrode 14 and the other ends thereof come into contact with the electric terminals 8. The heat of the thermostatic part 1 is transmitted to the electrodes 13, 14 through the terminals 7, 8 and the contact elements 19, 20 by conduction. |
