FR2412106A1 - Control process for gas phase chromatography - uses comparison of standard and current graphs on screen to monitor process - Google Patents
Control process for gas phase chromatography - uses comparison of standard and current graphs on screen to monitor processInfo
- Publication number
- FR2412106A1 FR2412106A1 FR7738253A FR7738253A FR2412106A1 FR 2412106 A1 FR2412106 A1 FR 2412106A1 FR 7738253 A FR7738253 A FR 7738253A FR 7738253 A FR7738253 A FR 7738253A FR 2412106 A1 FR2412106 A1 FR 2412106A1
- Authority
- FR
- France
- Prior art keywords
- screen
- gas phase
- standard
- phase chromatography
- control process
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C3/00—Registering or indicating the condition or the working of machines or other apparatus, other than vehicles
- G07C3/14—Quality control systems
-
- 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
- G01N30/04—Preparation or injection of sample to be analysed
- G01N30/24—Automatic injection systems
-
- 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
- G01N30/8658—Optimising operation parameters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R13/00—Arrangements for displaying electric variables or waveforms
- G01R13/20—Cathode-ray oscilloscopes
- G01R13/22—Circuits therefor
- G01R13/30—Circuits for inserting reference markers, e.g. for timing, for calibrating, for frequency marking
Landscapes
- Physics & Mathematics (AREA)
- General 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)
- Immunology (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Quality & Reliability (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
Control of a cyclic gas phase chromatography process is based on the comparison between a standard curve representing a first reference cycle, and a second curve representing a cycle of operation in progress. These are simultaneously viewed on a TV screen. The standard curve is stored in a memory, and plotted on the screen, while the second curve is plotted in real time. The associated circuity calculates the difference between the y-coordinates for the two curves, and the value (y2 - y1) is also displayed.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7738253A FR2412106A1 (en) | 1977-12-19 | 1977-12-19 | Control process for gas phase chromatography - uses comparison of standard and current graphs on screen to monitor process |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7738253A FR2412106A1 (en) | 1977-12-19 | 1977-12-19 | Control process for gas phase chromatography - uses comparison of standard and current graphs on screen to monitor process |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2412106A1 true FR2412106A1 (en) | 1979-07-13 |
FR2412106B1 FR2412106B1 (en) | 1980-08-22 |
Family
ID=9199016
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7738253A Granted FR2412106A1 (en) | 1977-12-19 | 1977-12-19 | Control process for gas phase chromatography - uses comparison of standard and current graphs on screen to monitor process |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2412106A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0243280A1 (en) * | 1986-04-25 | 1987-10-28 | Rhone-Poulenc Recherches | Method and apparatus for the on-line analysis of a liquid product by liquid chromatography |
-
1977
- 1977-12-19 FR FR7738253A patent/FR2412106A1/en active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0243280A1 (en) * | 1986-04-25 | 1987-10-28 | Rhone-Poulenc Recherches | Method and apparatus for the on-line analysis of a liquid product by liquid chromatography |
FR2597980A1 (en) * | 1986-04-25 | 1987-10-30 | Rhone Poulenc Rech | METHOD AND INSTALLATION OF ONLINE ANALYSIS OF A LIQUID PRODUCT BY LIQUID CHROMATOGRAPHY |
US4785660A (en) * | 1986-04-25 | 1988-11-22 | Rhone-Poulenc Recherches | Process and installation for on-line analysis of a liquid product by liquid phase chromatography |
Also Published As
Publication number | Publication date |
---|---|
FR2412106B1 (en) | 1980-08-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
TP | Transmission of property | ||
ST | Notification of lapse |