CS189484A1 - Plynovy chromatograf - Google Patents
Plynovy chromatografInfo
- Publication number
- CS189484A1 CS189484A1 CS841894A CS189484A CS189484A1 CS 189484 A1 CS189484 A1 CS 189484A1 CS 841894 A CS841894 A CS 841894A CS 189484 A CS189484 A CS 189484A CS 189484 A1 CS189484 A1 CS 189484A1
- Authority
- CS
- Czechoslovakia
- Prior art keywords
- gas
- press
- temp
- carrier
- vessel
- Prior art date
Links
Landscapes
- Sampling And Sample Adjustment (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
The gas chromatograph has programmed variation of column temp. by means of a thermostat. High accuracy of analysis is obtd. by stabilisation of the volumetric flow of gas-carrier through the chromatographic column during programming of its temp. This is achieved by using five-membrane comparator and a sealed vessel volume filled with gas. The input of the five membrane element is connected to the source of the gas carrier. - The inputs of press. regulator (2) and the five membrane comparator (3) receive gas carrier from source (1). In the initial state, the adjustment of regulator (2) sets the reqd. press. The comparator (3) operates in the repeater mode and ensures the necessary flow of gas passing via column (5) and detector (8). After this unit (4) receives a sample of the analysed prod. and in relation with a given programme the temp. of thermostatic vessel (7) increases. Since the press. of the constant vessel (6) is increased proportional to the increase of temp. of the thermostat (7) in accordance with the given programme, the element (3) operating as a summator realises algebraic equality of the output press. with the set press. plus the press. in vessel (6) and tends to increase, compensating the redn. of flow of gas from column (5) by increase of the gas-carrier at the output of element (3). Thus in the entire process during heating and cooling a constant volume flow of gas is ensured through the detector.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CS841894A CS268761B1 (en) | 1984-03-16 | 1984-03-16 | Gaseous chromatograph |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CS841894A CS268761B1 (en) | 1984-03-16 | 1984-03-16 | Gaseous chromatograph |
Publications (2)
Publication Number | Publication Date |
---|---|
CS189484A1 true CS189484A1 (en) | 1986-12-18 |
CS268761B1 CS268761B1 (en) | 1990-04-11 |
Family
ID=5354455
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CS841894A CS268761B1 (en) | 1984-03-16 | 1984-03-16 | Gaseous chromatograph |
Country Status (1)
Country | Link |
---|---|
CS (1) | CS268761B1 (en) |
-
1984
- 1984-03-16 CS CS841894A patent/CS268761B1/en unknown
Also Published As
Publication number | Publication date |
---|---|
CS268761B1 (en) | 1990-04-11 |
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