公开(公告)号：JPH03102261A

公开(公告)日：1991-04-26

申请号：JP15663890

申请日：1990-06-16

Applicant: MITSUI TOATSU CHEMICALS

Inventor： ONOBUSA MITSUO ,  HASHIMOTO MITSUYOSHI ,  TAGAWA KIMITERU ,  HAGIWARA MICHIRO

IPC: G01N1/28 ,  G01N35/00

Abstract: PURPOSE:To trace a change with time of a composition sequentially and to enable automatic control of the change of the composition by repeating sequentially and automatically operations from the collection of a fluid sample into a treating vessel to the preliminary treatment, analysis and discharge thereof and preparation for a subsequent analysis. CONSTITUTION:The content in a tank C-1 in a process of reaction is collected into a treating vessel R. The vessel R is weighed W, and when it reaches a predetermined weight, a cock V-1 is closed. The vessel R is heated H and then diluted water is injected therein. An agitating vane and a platinum electrode for titration which are fitted to a plate B are lowered into a sample solution in the vessel R and an electrode potential is read continuously by a microcomputer through a potentiometer E. A standard solution in a bottle C-2 is injected into the vessel R through a syringe pump P-4 and the titration is conducted. The microcomputer computes a rate of oxidation by using the quantity of the standard solution. The diluted water is released from slender holes of a showering S and thereby the inside of the vessel R is washed. Simultaneously, a suction nozzle N for discharge is inserted into the bottom part of the vessel R and a discharge pump P-5 is operated to discharge water. The pump P-5 is stopped a prescribed time later and the nozzle N, the electrode and the agitating vane are drawn up.

公开(公告)号：JPS63115021A

公开(公告)日：1988-05-19

申请号：JP26170986

申请日：1986-10-31

Applicant: MITSUI TOATSU CHEMICALS

Inventor： TANAKA EIJI ,  HAGIWARA MICHIRO ,  USAMI YASUSHI ,  ONOBUSA MITSUO ,  ASANO MAKOTO

IPC: G01J3/46

Abstract: PURPOSE:To perform the colorimetry of a sample automatically and to control the quantity of the sample sufficiently by carrying out the 1st colorimetry of the sample of colorimetry and holding it under constant conditions for a set tie, and then performing the 2nd colorimetry by the same method. CONSTITUTION:An annular body 1 where temperature detection label samples are arranged successively is extended between a driving rubber roller and a floating roller. The annular body 1 is run by the driving rubber roller and when it enters a constant state at a label position detection part 8, an on detection signal is inputted to a CPU. A stop signal is sent from the CPU to a motor 5 with the input signal to stop the motor 5, and the annular body 1, therefore, stops running. Then, an actuation signal is sent from the CPU to a solenoid 11 and a sample presser is elevated to press a sample. Then, when the sample presser is elevated through the operation of the solenoid 11, the switch of a colorimetric machine 7' is turned on mechanically. The 2nd and succeeding colorimetry operations are repeated similarly. Thus, the colorimetry of many samples is performed automatically.

公开(公告)号：JPS6221575B2

公开(公告)日：1987-05-13

申请号：JP13178579

申请日：1979-10-15

Applicant: MITSUI TOATSU CHEMICALS

Inventor： JINBO TAKASHI ,  YANAGAWA NORYUKI ,  KOIZUMI KYOGO ,  HAGIWARA MICHIRO ,  MYAGAWA HIROJI

IPC: C07C5/333 ,  B01J21/04 ,  B01J23/26 ,  B01J23/76 ,  B01J23/78 ,  B01J23/80 ,  B01J23/86 ,  B01J35/04 ,  C07B61/00 ,  C07C1/00 ,  C07C11/167 ,  C07C15/46 ,  C07C67/00