GB1036624A - Process for continuous gas chromatographic analysis - Google Patents
Process for continuous gas chromatographic analysisInfo
- Publication number
- GB1036624A GB1036624A GB1535463A GB1535463A GB1036624A GB 1036624 A GB1036624 A GB 1036624A GB 1535463 A GB1535463 A GB 1535463A GB 1535463 A GB1535463 A GB 1535463A GB 1036624 A GB1036624 A GB 1036624A
- Authority
- GB
- United Kingdom
- Prior art keywords
- component
- frequency spectrum
- periodically
- continuous gas
- sinusoidally
- 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.)
- Expired
Links
- 238000000034 method Methods 0.000 title abstract 6
- 238000004587 chromatography analysis Methods 0.000 title abstract 2
- 238000001228 spectrum Methods 0.000 abstract 3
- 238000004458 analytical method Methods 0.000 abstract 2
- 239000012159 carrier gas Substances 0.000 abstract 2
- 239000000203 mixture Substances 0.000 abstract 2
- 239000007789 gas Substances 0.000 abstract 1
- 238000004817 gas chromatography Methods 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
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
- G01N30/26—Conditioning of the fluid carrier; Flow patterns
- G01N30/28—Control of physical parameters of the fluid carrier
- G01N30/32—Control of physical parameters of the fluid carrier of pressure or speed
-
- 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
- G01N30/62—Detectors specially adapted therefor
- G01N2030/621—Detectors specially adapted therefor signal-to-noise ratio
- G01N2030/623—Detectors specially adapted therefor signal-to-noise ratio by modulation of sample feed or detector response
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)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
A process for continuous gas chromatographic analysis comprises introducing a periodically e.g. sinusoidally, fluctuating quantity of test sample mixture into a carrier gas flowing through a separation column in which the velocity of the sample is caused to fluctuate periodically at a different frequency, e.g. by varying the carrier gas velocity sinusoidally, and determining the component concentration of the sample from a frequency spectrum produced by the detector. The mathematical relationship between the two frequencies, the frequency spectrum and the component concentration is defined. A method of analyzing for only two components in a three component mixture is disclosed. This involves the choice of frequencies such that one component no longer influences the frequency spectrum. The method of the invention allows an analysis to be performed which is not restrained by the time of the slowest component. A process utilizing continuous gas chromatography with a periodically fluctuating quantity of a test sample containing n components is stated to be known. In this method, n/2 measuring points are required for complete analysis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1535463A GB1036624A (en) | 1963-04-18 | 1963-04-18 | Process for continuous gas chromatographic analysis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1535463A GB1036624A (en) | 1963-04-18 | 1963-04-18 | Process for continuous gas chromatographic analysis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1036624A true GB1036624A (en) | 1966-07-20 |
Family
ID=10057663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1535463A Expired GB1036624A (en) | 1963-04-18 | 1963-04-18 | Process for continuous gas chromatographic analysis |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1036624A (en) |
-
1963
- 1963-04-18 GB GB1535463A patent/GB1036624A/en not_active Expired
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