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1. 发明专利

JPH07159387A APPARATUS AND METHOD AS WELL AS ANALYZER FOR EXTRACTING FAT-SOLUBLE OR VOLATILE MATERIAL IN SAMPLE WATER 失效
公开(公告)号：JPH07159387A
公开(公告)日：1995-06-23
申请号：JP30316793
申请日：1993-12-03
申请人： HITACHI LTD
发明人： TAKADA YOSHITADA , TSUKADA KATSUO
IPC分类号： G01N30/02 , G01N30/06
摘要： PURPOSE:To provide an extracting apparatus, which enriches and extracts harmful, fat-soluble or volatile organic material in environmental water such as city water, rivers, lakes and the like and in waste water. CONSTITUTION:Organic solvent 6, which is water-insolble, and sample water 1 are alternately injected into a thin pipe so that the solvent and the water are finely fractionated. The object components are distributed in the extracting medium 6 and the sample water 1 in an extracting coil 4 so as to obtain a partition equilildium. The outflowing extracting medium 6 and sample water 1 are separated by a separator 18. The extracting medium 6 containing the object component is guided into a trap column 10, and the object component is collected. The extracting medium, wherein the object component flowing out of the trap column 10 is extracted, is returned into the original flow path and injected. The medium is brought into contact with the new sample water 1 in this constitution.

2. 发明专利

JPH0610664B2 失效
公开(公告)号：JPH0610664B2
公开(公告)日：1994-02-09
申请号：JP16519283
申请日：1983-09-09
申请人： HITACHI LTD
发明人： TAKADA YOSHITADA , HAMADA YUMIKO
IPC分类号： G01N27/26 , G01N27/447

3. 发明专利

JPH0599899A METHOD FOR SEPARATELY PURIFYING BIO-SUBSTANCE 失效
公开(公告)号：JPH0599899A
公开(公告)日：1993-04-23
申请号：JP23783291
申请日：1991-09-18
申请人： HITACHI LTD
发明人： YASUDA KENJI , TAKADA YOSHITADA
IPC分类号： A61K39/395 , B01D57/02 , C12N1/00 , C25D13/04 , G01N27/447
摘要： PURPOSE:To purify a highly pure bio-substance by adding a substance having electrophoresis different from that of a substance to be separated which can react with the substance to be separated to fluid containing a sample immediately before or during a non-carrier electrophoretic process to selectively separate the substance. CONSTITUTION:At the time of injecting a sample containing a substance 5 to be separated, a reactive electrophoretic substance 7 is added at the same time, whereby the substances 5, 7 form a reaction composite and electrophoretically separated closed to a cathode than a separation partition of the substance 5. Thus the reactive substance 5 can be obtained. The substance 5 not having activity or function is separated in another partition. Therefore electrophoretic separation of the substance having activity and function is possible. Thus a substance to be separated having higher function can be obtained.

4. 发明专利

JPH02263153A ELECTROPHORETIC DEVICE 失效
公开(公告)号：JPH02263153A
公开(公告)日：1990-10-25
申请号：JP4927290
申请日：1990-03-02
申请人： HITACHI LTD
发明人： TAKADA YOSHITADA , HAMADA YUMIKO
IPC分类号： G01N27/447
摘要： PURPOSE:To migrate and develop plural samples at one time under a same electrical field condition by electrically communicating the ends on respective one side of plural migrating and developing parts with a 1st common electrode chamber and electrically communicating the ends on the other side with a 2nd common electrode chamber. CONSTITUTION:Plural pieces of tubes 21, 21' for migration housing migration media are provided and buffer soln. flow passages in contact with both ends of these tubes 21, 21' for migration and ion exchange tubes 12a, 13a formed in a part thereof are provided in plural sets as well. The tubes 21, 21' for migration are so constituted that electric fields are impressed thereto by coming into contact with buffer solns. 8, 8', 9, 9' of the same or different set. The respective ion exchange tubes 12a, 13a are electrically communicated with electrolytic cells, 2, 3 which are the common electrode chambers. The electric fields are simultaneously impressed to the plural tubes 21, 21' for migration through the respectively corresponding buffer soln. flow passages. When a voltage is changed between the electrodes 6, 7.

5. 发明专利

JPH0213269B2 失效
公开(公告)号：JPH0213269B2
公开(公告)日：1990-04-03
申请号：JP4224783
申请日：1983-03-16
申请人： HITACHI LTD
发明人： ABE YUMIKO , HIROTA KUNIO , YASUDA KENJI , MIMAKI HIROSHI , MYAGI HIROYUKI , TAKADA YOSHITADA
IPC分类号： G01N33/48 , G01N33/483 , G01N33/49 , G01N33/62 , G01N33/66 , G01N33/70 , G01N33/72

6. 发明专利

JPS63121750A METHOD AND APPARATUS FOR LIQUID CHROMATOGRAPHY 失效
公开(公告)号：JPS63121750A
公开(公告)日：1988-05-25
申请号：JP26763286
申请日：1986-11-12
申请人： HITACHI LTD
发明人： TAKADA YOSHITADA
IPC分类号： G01N30/86 , G01N30/02
摘要： PURPOSE:To permit low-flow rate analysis by continuously supplying a liquid mixture composed of a sample contg. components to be detected and eluate to a sepn. column, passing a prescribed amt. of a solvent for elimination through the sepn. column, monitoring the effluent thereof and detecting negative peaks. CONSTITUTION:Many pieces of sample vessels 1 contg. the sample liquids including the components to be detected are arranged on a turn table and are positioned sequentially to a suction position at every analysis operation. Potassium hydrogenphthalate is contained in a eluate vessel 2. A liquid feed pump 5 is so controlled by a controller 9 to feed a micro quantity. The eluate and the sample are sucked at a specified ratio by the suction operation of the pump 5 and are mixed by a mixer 4. The mixture is fed to the sepn. column 7. The liquid mixture is discharged from the column 7 to the outside through a detector 8. The detector 8 detects the component peak appearing on the side nearer the negative side than the base line. The peaks are recorded by a recorder 14. The low-flow rate analysis is thus carried out.

7. 发明专利

JPS62177448A LIQUID CHROMATOGRAPHIC ANALYSIS 失效
公开(公告)号：JPS62177448A
公开(公告)日：1987-08-04
申请号：JP1796386
申请日：1986-01-31
申请人： HITACHI LTD
发明人： FUJII YOSHIO , TAKADA YOSHITADA
IPC分类号： G01N30/02 , B01D15/08 , G01N30/50
摘要： PURPOSE:To shorten the entire time for analysis by providing a process for supplying an eluate of the max. counter ion concn. and eluate of the max. pH to a sepn. column as a preliminary process before a chromatographic analysis process using plural kinds of eluates. CONSTITUTION:A series of samples, for example, amino acid mixtures are analyzed by using plural kinds of the eluates. The respective components are separated by using the eluates in the same sequence. For example, the 1st-4th stage eluates and regenerating liquids are assumed to have 0.2-1.2N counter ion concn. and 3.2-12 pH. The sepn. conditions are adjusted by supplying the 4th stage eluate of the max. counter ion concn. 1.2N and the regenerating liquid of the max. pH to the column as the preliminary process. The analyzing conditions for the 1st, 2nd, 3rd samples, etc. to be repeatedly analyzed are thereby made the same, by which the time is shortened. Since the column is treated with the specific eluate in the preliminary process, all the samples are analyzed under the same conditions and the retention time is made coincident. The time for the entire analysis is thus shortened.

8. 发明专利

JPS61209016A METHOD AND APPARATUS FOR EXTRACTING GASEOUS COMPONENT 失效
公开(公告)号：JPS61209016A
公开(公告)日：1986-09-17
申请号：JP4831885
申请日：1985-03-13
申请人： HITACHI LTD
发明人： TAKADA YOSHITADA , OKI NAOTO
IPC分类号： G01N30/00 , B01D19/00
摘要： PURPOSE:To reduce the expansion of the specimen band in a fluid by efficiently performing degassing, by adding gas to a liquid to extract dissolved gas with said gas and subsequently separating said gases through a degassing tube. CONSTITUTION:Gas is mixed with the solution 1 sent by a liquid feed pump 2 on the way of a flow channel by a gas pump 4. The stream containing gas converted to gas bubbles by mixing is subsequently passed through a heater 5. Because the temp. of the fluid rises by this heater 5, dissolved gas is reduced in its solubility and the amount thereof is reduced. Subsequently, the stream having gas bubbles mixed therein is passed through a degassing tube 3 before temp. is lowered and gas-liquid separation is performed by said degassing tube 3. The stream 7 of carrier gas containing gas bubbles reaches a gas pump 9 and the carrier gas containing the gas is sucked by the gas pump 9.

9. 发明专利

JPS616339B2 JPS616339B2 - 失效
公开(公告)号：JPS616339B2
公开(公告)日：1986-02-25
申请号：JP13813079
申请日：1979-10-25
申请人： Hitachi Ltd
发明人： TAKI MAMORU , MIURA JUNKICHI , MYAGI HIROYUKI , TAKADA YOSHITADA , KARINO SHIGETAKA , TSUKADA KATSUO , ITO MITSUO
IPC分类号： G01N33/493 , G01N30/34 , G01N30/88 , G01N33/48

10. 发明专利

JPS6058543A LIQUID FLOWING TYPE CARRIER ELECTROPHORESIS APPARATUS 失效
公开(公告)号：JPS6058543A
公开(公告)日：1985-04-04
申请号：JP16670183
申请日：1983-09-12
申请人： HITACHI LTD
发明人： TAKADA YOSHITADA
IPC分类号： G01N27/26 , B01D57/02 , G01N27/447 , G01N30/00 , G01N30/02 , G01N30/38 , G01N30/58 , G01N30/60 , G01N30/74 , G01N30/80
摘要： PURPOSE:To obtain a new separating apparatus, wherein high-speed liquid chromatography using a new column filler is adopted in an electrophoresis method, by using a granular material as a carrier, and flowing a liquid forcibly and steadily in the direction perpendicular to a DC electric field. CONSTITUTION:An elute 1 folws through a filler 3, which is held between a pair of parallel plates, through a liquid dispersing plate 13 by a pump 11. A sample is continuously sent through a pipe 12 by switching a valve 18. Ion exchanged films are closely contacted with both side surfaces of the parallel plates, so that the filler is not spilled out of the side surfaces. An electric field is imparted by electrodes 5 and 5' from the side at the same time. At the inlet port at the lower end of the flat shaped column, several tens of pipes having filters are arranged. The elute flows out trough the pipes. Theses pipes are guided to a multi-path photometer 15, which projects a monochromatic light beam on transparent pipes on a photodiode array and measures absobance. The elute is inputted into test tubes on a fraction collector 16. The output of the photometer 15 is display on a display device 17. Through these procedures, it is determined that in which tube the objective component is contained.

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