| 摘要 |
PURPOSE:To shorten an analyzing time by measuring a sample by an automatic titration buret while sending the sample continuously to a measuring cell by a constant passage pump. CONSTITUTION:A sample solution 14 is continuously sent to a titration cell 7 agitated by an electromagnetic agitator 6 and an agitating piece 10. The potential of an electrode 8 is inputted to a microcomputer 17 through an interface 16 and compared with a set potential, and if the former level does not reach the latter level, the microcomputer 17 outputs a titration signal to the titration buret 1. The signal corresponds to the titration of 0.01ml per pulse and the signal is continuously sent until the potential of the electrode 8 reaches the set level, and even if the potential is dropped again, the signal is sent again. The microcomputer 17 stores the number of pulses, and at a fixed time, integrates the number of pulses outputted before a fixed period from the point of time to find out the concentration. |
