公开(公告)号：JPS6018751A

公开(公告)日：1985-01-30

申请号：JP12539683

申请日：1983-07-12

Applicant: TOA ELECTRONICS

Inventor： KAKEFUDA YOSHIHIKO ,  SUZUKI HIROSHI ,  MORITA TOSHINAO ,  TAKAYAMA HISASHI

IPC: G01N27/38

Abstract: PURPOSE:To enhance washing effect, by flowing a part of the next liquid to be examined through a flow cell prior to measurement while repeating flowing and stopping. CONSTITUTION:A flow cell consists of a flow cell main body 1, an indication electrode 2, a comparison electrode 3, a pipeline 4 for introducing a liquid to be examined, the liquid 5 to be examined and a pump 6. A part of the next liquid to be examined is sucked from the left side of the pipeline 4 prior to measurement by the pump 6 to be introduced into said pipeline 4 and the starting and stopping of the pump 6 is repeatedly performed regularly. The preceedingly measured liquid adhered to the interior of the flow cell main body 1 or the detection terminal parts of the electrodes 2, 3 is perfectly removed and discharged by the pump 6.

公开(公告)号：JPH0623698B2

公开(公告)日：1994-03-30

申请号：JP16246585

申请日：1985-07-23

Applicant: TOA ELECTRONICS

Inventor： GOTSU TOSHIO ,  SUZUKI HIROSHI ,  SAKURAI HISASHI ,  TAKAYAMA HISASHI ,  SUZUKI HIROYUKI

IPC: G01N33/483 ,  G01N13/04 ,  G01N25/04 ,  G01N25/14

公开(公告)号：JPH0389158A

公开(公告)日：1991-04-15

申请号：JP22618089

申请日：1989-08-31

Applicant: TOA ELECTRONICS

Inventor： SUZUKI HIROSHI ,  SUZUKI HIROYUKI ,  TAKAYAMA HISASHI ,  NAKANO TAISUKE

IPC: G01N27/26

Abstract: PURPOSE:To judge whether it is necessary to calibrate by humors and to perform correct calibration at low cost by measuring the change of an electromotive force per 1pX of an ion electrode by a standard solution and the change of a response time to a predetermined electromotive force. CONSTITUTION:A sample container 14 storing humors to be measured, for example, blood of an automatic ion electrode measuring apparatus 1 is connected to a suction nozzle 12. When a peristaltic pump Pa is driven, the blood is sent to a sample path 4 within a measuring cell 2. The concentration of ions in the blood is measured by an Na ion electrode 6 and a K ion electrode 8. At every measurement, a peristaltic pump Pb is driven to send a standard solution of a known concentration to the flow path 4 from a tank 32 storing the standard solution of low concentration, so that the electrodes 6, 8 are calibrated. Moreover, a standard solution of high concentration is sent out from a standard solution tank 34 with a predetermined frequency for calibra tion. At this time, if the change in electromotive force of the electrodes 6, 8 and the change in response time to obtain a predetermined electromotive force per 1pX, that is, one concentration change of the standard solution are measured, it is possible to judge whether the electrodes 6, 8 should be calibrated by serum.

公开(公告)号：JPS63132170A

公开(公告)日：1988-06-04

申请号：JP27649486

申请日：1986-11-21

Applicant: TOA ELECTRONICS

Inventor： SUZUKI HIROSHI ,  TAKAYAMA HISASHI ,  SUZUKI HIROYUKI ,  YOKOYAMA ICHIRO

IPC: G01N1/00 ,  G01N35/10

Abstract: PURPOSE:To entirely remove the sample liquid remaining in a sample transport pipeline so that the trace sample is analyzed with high accuracy by feeding air as air bubbles at >=1 points into said pipeline from an air transport pipe to execute co-cleaning, then drawing part of the feed side sample into the air transport pipe side after the final air bubble is fed into the pipeline. CONSTITUTION:The sample liquid entering the pipeline 2 from a sample pot 1 is sucked by a pump 4 and is introduced into a flow cell 3 for measurement from which the sample liquid is discharged through a discharge port 5. A part of a standard liquid is passed to the pipeline 2 and the cell 3 to co-clean the same prior to the measurement or at the time of calibration. A small amt. of the air is intermittently fed into the pipeline 2 from a branch pipe 6 through a released pinch valve 8 and is introduced as the air bubbles into the flow of the sample in the pipeline 2 from >=1 points to remove the remaining previous measuring liquid, etc. The sample liquid or the standard liquid for calibration is fed from the sample pot 1 into the pipeline 2 and the feed of the air is stopped right after the final air bubble is fed into said pipeline upon ending of the co-cleaning.

公开(公告)号：JPS6222053A

公开(公告)日：1987-01-30

申请号：JP16246585

申请日：1985-07-23

Applicant: TOA ELECTRONICS

Inventor： IZU TOSHIO ,  SUZUKI HIROSHI ,  SAKURAI HISASHI ,  TAKAYAMA HISASHI ,  SUZUKI HIROYUKI

IPC: G01N33/483 ,  G01N13/04 ,  G01N25/04 ,  G01N25/14

Abstract: PURPOSE:To exactly measure an osmotic pressure by vertically and relatively moving a sublimation nucleus and sample liquid surface to bring both into contact with each other and to freeze the sample liquid, measuring the freezing point and determining the osmotic pressure of the sample liquid in accordance with the freezing point depression degree. CONSTITUTION:The substantial sublimation nucleus is formed to the top end of a metallic rod 5 and after the sample liquid in a measuring cell 2 attains a supercooling stage, a valve 18 is opened and a pump 12 is operated to raise the sample liquid surface in the cell 2 up to the height at which said liquid surface surely contacts with the sublimation nucleuous. The sample liquid instantaneously freezes when the ice crystal angle contacts with the sample liquid in the supercooled state. The temp. of the sample liquid is increased from the supercooling temp. by the latent released at the same instant and attains the equil. temp., i.e., freezing point temp. for several seconds in the co-existence state of the ice and water; therefore the freezing point depression degree is determined by detecting such temp. The osmotic pressure is calculated by an arithmetic unit from the freezing point depression degree.

公开(公告)号：JPH05126780A

公开(公告)日：1993-05-21

申请号：JP31173991

申请日：1991-10-30

Applicant: TOA ELECTRONICS

Inventor： TAKAYAMA HISASHI ,  YOKOYAMA ICHIRO ,  NAKANO TAISUKE ,  UEDA TATSU

IPC: G01N27/26

Abstract: PURPOSE:To obtain a measuring method of solution concentration which enables a very quick measurement without losing accuracy of the measurement. CONSTITUTION:In a measuring method of solution concentration where the solution concentration is calculated from output voltage of sample solution using a measuring device of solution concentration by ion electrode method, measurements of sample solutions 2 or 4 are repeated succedingly to the first calibration by calibration liquid. One single output voltage C1 obtained from the calibration is used for solution concentration calculation of output voltages S1 and S2 of each sample 1 or 2 before and/or after the calibration.