GB924094A - Improvements in or relating to gas-liquid or gas-solid chromatography - Google Patents
Improvements in or relating to gas-liquid or gas-solid chromatographyInfo
- Publication number
- GB924094A GB924094A GB1148460A GB1148460A GB924094A GB 924094 A GB924094 A GB 924094A GB 1148460 A GB1148460 A GB 1148460A GB 1148460 A GB1148460 A GB 1148460A GB 924094 A GB924094 A GB 924094A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gas
- column
- katharometer
- pict
- iii
- 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
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
- G01N30/62—Detectors specially adapted therefor
- G01N30/64—Electrical detectors
- G01N30/66—Thermal conductivity detectors
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)
- Sampling And Sample Adjustment (AREA)
Abstract
<PICT:0924094/III/1> <PICT:0924094/III/2> <PICT:0924094/III/3> <PICT:0924094/III/4> In a gas chromatograph comprising a gas chromatographic column (3) with a solid or solid-supported liquid absorbent, a katharometer (5) having chambers (12, 13) with electrical heating elements for a carrier gas stream and the emergent gas stream, and a comparator circuit, the katharometer is housed in a chamber formed in a heat-conductive mass (1) having thermostatically-controlled heating means (6) encased therein. As shown in Fig. 1, to which the above numerals relate, the chromatographic column 3 and a reference column 2 are coiled around a sheath 1b between which and an inner cylinder 1a (which together form the heat-conductive mass) is an insulated heating coil 6 and a bare wire coil 6a to prevent inductive disturbances. A thermostat 8 is provided in cylinder 1a, close to the heating element. Gas to be analysed enters column 3 at 39 and passes via end 30 and capillary tubes 30a, 31 into the sensing chamber 13 of the katharometer, while the reference gas similarly enters chamber 12. The gases thereafter enter cross bores 17, 16 and are withdrawn through common outlet 32. The assembly is surrounded by a cylindrical casing 33 having a base 35 and lid 34 and the unoccupied space is packed with glass wool. In Fig. 5 is shown a flow sheet for the apparatus: carrier gas enters at 52, is dried, if necessary, in tube 54 and passes to a buffer volume 60 whence a reference gas stream passes to column 2 and the katharometer H and a part is taken through line 60a and column 3. Valves 89, 87 and 88 provide for alternative flow of the carrier gas directly to column 3 or via sample volume 69. Valves 85, 86 provide for the filling of volume 69 from gas pipeline 66 for the gas to be analysed. The valves are operated by means of device 79 (see Fig. 4). Compressed air is admitted to opening 84 and operates the above mentioned valves, which correspond to lines 89b, 87b, 88b, 85b and 86b respectively of device 79. Piston 81 driven by motor 82 opens the above mentioned lines to programme the taking of a sample. The result of the analysis is recorded as a chromatogram at R using an amplifier A for the output of a Wheatstone bridge aircuit. The apparatus may be used to purify UF vapours at sub-atmospheric pressure and elevated temperature using a column packed with ground solid polytrifluorochloroethane supporting polytrifluoro-chloroethylene oil.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1148460A GB924094A (en) | 1960-03-31 | 1960-03-31 | Improvements in or relating to gas-liquid or gas-solid chromatography |
DE1961U0003071 DE1866487U (en) | 1960-03-31 | 1961-01-24 | GAS CHROMATOGRAPHY DEVICE WITH HEATING UNIT. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1148460A GB924094A (en) | 1960-03-31 | 1960-03-31 | Improvements in or relating to gas-liquid or gas-solid chromatography |
Publications (1)
Publication Number | Publication Date |
---|---|
GB924094A true GB924094A (en) | 1963-04-24 |
Family
ID=9987106
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1148460A Expired GB924094A (en) | 1960-03-31 | 1960-03-31 | Improvements in or relating to gas-liquid or gas-solid chromatography |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE1866487U (en) |
GB (1) | GB924094A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1050756A2 (en) * | 1999-05-07 | 2000-11-08 | ThermoQuest Italia S.p.A. | Device for measuring the thermal conductivity of a fluid |
CN111044652A (en) * | 2018-10-15 | 2020-04-21 | 兰州东立龙信息技术有限公司 | Chromatographic column |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108072720A (en) * | 2016-11-11 | 2018-05-25 | 成都青山利康药业有限公司 | A kind of device for keeping sample injection bottle cleaning dry |
-
1960
- 1960-03-31 GB GB1148460A patent/GB924094A/en not_active Expired
-
1961
- 1961-01-24 DE DE1961U0003071 patent/DE1866487U/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1050756A2 (en) * | 1999-05-07 | 2000-11-08 | ThermoQuest Italia S.p.A. | Device for measuring the thermal conductivity of a fluid |
EP1050756B1 (en) * | 1999-05-07 | 2009-06-10 | Thermo Electron S.p.A. | Device for measuring the thermal conductivity of a fluid |
CN111044652A (en) * | 2018-10-15 | 2020-04-21 | 兰州东立龙信息技术有限公司 | Chromatographic column |
Also Published As
Publication number | Publication date |
---|---|
DE1866487U (en) | 1963-01-31 |
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