JPS576358A - Control circuit for micro flow rate - Google Patents
Control circuit for micro flow rateInfo
- Publication number
- JPS576358A JPS576358A JP7890780A JP7890780A JPS576358A JP S576358 A JPS576358 A JP S576358A JP 7890780 A JP7890780 A JP 7890780A JP 7890780 A JP7890780 A JP 7890780A JP S576358 A JPS576358 A JP S576358A
- Authority
- JP
- Japan
- Prior art keywords
- liquid
- recorder
- analysis data
- correspondence
- operates
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/86—Signal analysis
- G01N30/8651—Recording, data aquisition, archiving and storage
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/80—Fraction collectors
- G01N30/82—Automatic means therefor
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Automatic Analysis And Handling Materials Therefor (AREA)
Abstract
PURPOSE:To obtain accurate analysis data by automatically controlling the chart speed of a recorder for analysis data recording in correspondence to the time for injecting moving phase liquid into a volume meter. CONSTITUTION:When the valve 4 in the lower part of a moving phase vessel 1 is opened, developer 2 flows into a column 3. Here, mixed components are separated, and flow through a tube 8 into a spectrophotometer 6 and the analysis data of the inflow liquid concentration are recorded in a recorder 9. When the liquid level sensor 11 of a volume meter 10 operates, an electromagnetic valve 13 openes and the discharge liquid from the column 3 is successively dispensed into test tubes 14a-14d. On the other hand, a timer circuit 16 measures the time until the sensor 11 operates at a specified point, and the motor 17 of the recorder 9 is rotated and controlled by the output thereof, whereby the chart speed is changed. Thereby, the correspondence of the analytical liquid per unit time and the recorded data are made easy, and the liquid separation is accomplished accurately.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7890780A JPS576358A (en) | 1980-06-13 | 1980-06-13 | Control circuit for micro flow rate |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7890780A JPS576358A (en) | 1980-06-13 | 1980-06-13 | Control circuit for micro flow rate |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS576358A true JPS576358A (en) | 1982-01-13 |
Family
ID=13674895
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7890780A Pending JPS576358A (en) | 1980-06-13 | 1980-06-13 | Control circuit for micro flow rate |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS576358A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61258165A (en) * | 1985-05-13 | 1986-11-15 | Fujiwara Seisakusho:Kk | Measuring instrument for cation exchange capacity |
JP2002544518A (en) * | 1999-05-12 | 2002-12-24 | アメルシャム・バイオサイエンシーズ・アクチボラグ | Apparatus for reducing liquid loss during fractionation |
US7109687B2 (en) | 2002-11-11 | 2006-09-19 | Mitsubishi Denki Kabushiki Kaisha | Three-phase ac generator for vehicle |
US7291950B2 (en) | 2004-01-14 | 2007-11-06 | Mitsubishi Denki Kabushiki Kaisha | Electric rotating machine for vehicle |
-
1980
- 1980-06-13 JP JP7890780A patent/JPS576358A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61258165A (en) * | 1985-05-13 | 1986-11-15 | Fujiwara Seisakusho:Kk | Measuring instrument for cation exchange capacity |
JP2002544518A (en) * | 1999-05-12 | 2002-12-24 | アメルシャム・バイオサイエンシーズ・アクチボラグ | Apparatus for reducing liquid loss during fractionation |
US7109687B2 (en) | 2002-11-11 | 2006-09-19 | Mitsubishi Denki Kabushiki Kaisha | Three-phase ac generator for vehicle |
US7291950B2 (en) | 2004-01-14 | 2007-11-06 | Mitsubishi Denki Kabushiki Kaisha | Electric rotating machine for vehicle |
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