METHOD AND APPARATUS FOR INJECTING SAMPLE LIQUID IN CONTINUOUS COULOMETRIC ANALYSIS

    公开(公告)号:JPS6373144A

    公开(公告)日:1988-04-02

    申请号:JP21836486

    申请日:1986-09-17

    Abstract: PURPOSE:To maintain electrolyte in a measuring cell at a constant quantity all the time, by automatically injecting sample liquid in the measuring cell, and automatically discharging the electrolyte corresponding to the quantity of the injected sample liquid out of the measuring cell at the same time to the outside of this system. CONSTITUTION:A through holes 17' at one side of rotated disc 20 is filed with sample liquid. The sample liquid is dilluted with electrolyte 1, which is circulated in a liquid sending path 5 by a circulating pump 22, and injected into a measuring cell 2 through the liquid sending path 5. At the same time, the electrolyte 1, which is put in another through hole 17 of the rotated disc 20, is discharged to the outside of this system through a liquid discharge path 6 naturally or by a liquid discharging pump. The through holes 17 and 17' of the rotated disc 20 have the same volume. The electrolyte 1 which has the quantity corresponding to the quantity of the sample 3 injected in the cell 3 is discharged to the outside of this system. Therefore, the quantity of the electrolyte 1 in the cell 3 can be kept at the constant quantity all the time even if continuous measurement is repeated.

    MEASURING DEVICE WITH MEMORY
    2.
    发明专利

    公开(公告)号:JP2000111506A

    公开(公告)日:2000-04-21

    申请号:JP28576598

    申请日:1998-10-07

    Abstract: PROBLEM TO BE SOLVED: To provide a measuring device with memory for automatically recognizing such information as the type and manufacturing number of an electrode without any need for setting a calibration or correction value each time when the electrode is replaced using a device body and for freely using the electrode for each application. SOLUTION: A measuring device 1 is provided with a device body 20 and a measurement electrode 10. An identification means for identifying the measurement electrode 10 is provided in the measurement electrode 10 or in a cable or a connector for connecting the measurement electrode 10 to the device body 20, and a storage means 21 for recognizing the identification means of the measurement electrode 10 and storing information regarding the measurement electrode 10 is provided in the device body 20.

    SAMPLING TUBE WASHING DEVICE
    4.
    发明专利

    公开(公告)号:JPH02223860A

    公开(公告)日:1990-09-06

    申请号:JP4398189

    申请日:1989-02-23

    Abstract: PURPOSE:To simply and efficiently wash a sampling tube by constituting this device so that a washing block in which the sampling tube is inserted through vertically is provided, and in the washing block, wash water is supplied and a sump solution is discharged. CONSTITUTION:In the figure, a sampling tube 1 descends and inserted into a sample container 17, and samples a sample liquid 18. After sampling is ended, the tube 1 is allowed to ascend by a fixed arm 2, and simultaneously, wash water 13 is supplied into the upper insert-through hole 7 from a supply port 10, while operating a vacuum pump 15. During this time, the liquid 18 adhering to the outside of the tube 1 is sucked from a discharge port 14, and subsequently, the outside of the tube 1 is washed the wash water 13 supplied to the insert- through hole 7. Next, when the lower end of the tube 1 reaches the ascending limit A, a sampling pump 3 operates. In such a way, the wash water 13 is sucked to the tube 1 and flows to a measuring cell 4, and the inside of the tube 1 and the cell 4 are washed. The wash water 13 used for washing is sucked from the discharge port 14.

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