GB978019A - Improvements in gas chromatographic analysis - Google Patents

Improvements in gas chromatographic analysis

Info

Publication number
GB978019A
GB978019A GB2272262A GB2272262A GB978019A GB 978019 A GB978019 A GB 978019A GB 2272262 A GB2272262 A GB 2272262A GB 2272262 A GB2272262 A GB 2272262A GB 978019 A GB978019 A GB 978019A
Authority
GB
United Kingdom
Prior art keywords
flow
column
carrier gas
gas
mixture
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
Application number
GB2272262A
Inventor
Jean Louis Trillet
Jean Vergnaud
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
European Atomic Energy Community Euratom
Original Assignee
European Atomic Energy Community Euratom
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by European Atomic Energy Community Euratom filed Critical European Atomic Energy Community Euratom
Publication of GB978019A publication Critical patent/GB978019A/en
Expired legal-status Critical Current

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
    • G01N30/26—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

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)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Treatment Of Liquids With Adsorbents In General (AREA)

Abstract

978,019. Gas chromatography. COMMUNAUTE EUROPEENNE DE L'ENERGIE ATOMIQUE. June 13, 1962 [June 15, 1961], No. 22722/62. Heading B1L. In a method for the analysis by gas chromatography of a liquid mixture, which may contain components with widely different boiling points, using a stream of carrier gas and a column packed with solid particles coated with a solvent, maintained at constant temperature, the rate of flow of the stream of carrier gas through the column is increased at least once during the analysis whereby sharp, distinctly-spaced peaks on the chromatogram are obtained for the individual components of the mixture. The rate of flow of carrier gas is preferably increased at points in time predetermined from a preliminary chromatogram of the mixture, obtained using a column operated with a constant rate of flow of carrier gas. Carrier gas from source 1 flows into pressureregulator 2, and the gas then passes on to column 6 via three-way valve 3 and either or both of two different flowpaths 4 and 5 of different flow-resistance. These flowpaths are each provided with flow control means, e.g. capillary tubing, an orifice, a diaphragm, or porous filling. In operation, valve 3 is first positioned so that the carrier gas flows to the column 6 via the flowpath of higher resistance At the desired time, as determined by a preliminary test, valve 3 is operated to switch the gas flow to the flowpath of lower resistance whereby the rate of flow of gas in the column is increased. An example relates to the analysis of a mixture of ortho-, meta-, and paraterphenyl, triphenyl, ortho-meta-quaterphenyl, and 1,2,4-triphenylbenzene, dissolved in benzene, using hydrogen as carrier gas and a column packed with diatomaceous earth impregnated with a silicone grease. The analysis of a mixture of hexane, benzene, tetraline and alpha-tetralone is also exemplified.
GB2272262A 1961-06-15 1962-06-13 Improvements in gas chromatographic analysis Expired GB978019A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR865026A FR1299684A (en) 1961-06-15 1961-06-15 Improvement in chromatographic analysis

Publications (1)

Publication Number Publication Date
GB978019A true GB978019A (en) 1964-12-16

Family

ID=8757324

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2272262A Expired GB978019A (en) 1961-06-15 1962-06-13 Improvements in gas chromatographic analysis

Country Status (4)

Country Link
BE (1) BE618883A (en)
FR (1) FR1299684A (en)
GB (1) GB978019A (en)
LU (1) LU41864A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3250057A (en) * 1963-03-13 1966-05-10 Texaco Trinidad Chromatographic separation of gaseous mixtures
WO2010066571A1 (en) * 2008-12-09 2010-06-17 Siemens Aktiengesellschaft Gas chromatograph comprising a controllable switching device
CN114166979A (en) * 2021-12-09 2022-03-11 四川阿格瑞新材料有限公司 Method for measuring content of 1-tetralone

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1226748B (en) * 1988-08-22 1991-02-05 Erba Strumentazione METHOD AND DEVICE FOR THE CONTROL OF FUNCTIONS IN A GAS CHROMATOGRAPH.

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3250057A (en) * 1963-03-13 1966-05-10 Texaco Trinidad Chromatographic separation of gaseous mixtures
WO2010066571A1 (en) * 2008-12-09 2010-06-17 Siemens Aktiengesellschaft Gas chromatograph comprising a controllable switching device
US8499615B2 (en) 2008-12-09 2013-08-06 Siemens Aktiegesellschaft Gas chromatograph comprising a controllable switching device
CN114166979A (en) * 2021-12-09 2022-03-11 四川阿格瑞新材料有限公司 Method for measuring content of 1-tetralone

Also Published As

Publication number Publication date
LU41864A1 (en) 1962-08-09
FR1299684A (en) 1962-07-27
BE618883A (en) 1962-12-14

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