GB1265036A - - Google Patents

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Publication number
GB1265036A
GB1265036A GB1265036DA GB1265036A GB 1265036 A GB1265036 A GB 1265036A GB 1265036D A GB1265036D A GB 1265036DA GB 1265036 A GB1265036 A GB 1265036A
Authority
GB
United Kingdom
Prior art keywords
line
lines
gas
switched
valve
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
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 filed Critical
Publication of GB1265036A publication Critical patent/GB1265036A/en
Expired legal-status Critical Current

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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
    • G01N30/38—Flow patterns
    • G01N30/46—Flow patterns using more than one column
    • G01N30/461—Flow patterns using more than one column with serial coupling of separation columns
    • 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
    • G01N30/06—Preparation
    • G01N30/08—Preparation using an enricher

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 Analyzing Materials By The Use Of Electric Means (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)

Abstract

1,265,036. Gas chromatography. B. K. KRYLOV, A. Y. VOROBIEV, G. K. KLIMESHOV, V. I. KALMANOVSKY, A. P. TOMNIKOV, Y. I. YASHIN, A. A. ZHUKHOVITSKY, M. L. SAZONOV, N. I. RAKITA and S. N. MOROZOVA. 27 Oct., 1969, No. 52410/ 69. Heading B1X. A gas chromatograph comprises three enriching columns 1, 2, 3, and an analytical column 26. With valves in the positions shown, line 8 is connected to the test gas source and line 7 to vacuum, while carrier gas fed by line 28 to flow regulator 23 passes by line 25 through the reference cell of thermal conductivity detector 24, and also by line 20, through metering device 15 and line 20 to analytical column 26 and thence through the measuring side of detector 24. Once columns 1, 2, 3 have reached a pressure of only 3mm. Hg, device 15 is adjusted to isolate the vacuum in columns 1, 2, 3 and valves 4, 5 are adjusted to disconnect lines 12, 13 and lines 9, 10 respectively. Valve 6 is then switched to allow test gas in line 8 to pass at atmospheric pressure into column 1; when atmospheric pressure is reached in column 1, line 8 is shut off, valve 4 switched to connect lines 9, 10 and then valve 5 switched to connect lines 12, 13, so that separated fractions pass in turn along line 14 to line 16 in metering device 15. When this happens device 15 is switched to place line 16 in series between lines 19 and 20 so that the trapped fraction in line 16 is carried by carrier gas to and through analytical column 26. Helium, neon and hydrogen in air, hydrogen in argon and hydrogen, oxygen and nitrogen in ethylene may be determined in this manner. Means are provided in valve 5 for an auxiliary gas comprising the test gas without the fraction being measured to be supplied to the system through line 11.
GB1265036D 1969-10-27 1969-10-27 Expired GB1265036A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5241069 1969-10-27

Publications (1)

Publication Number Publication Date
GB1265036A true GB1265036A (en) 1972-03-01

Family

ID=10463820

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1265036D Expired GB1265036A (en) 1969-10-27 1969-10-27

Country Status (1)

Country Link
GB (1) GB1265036A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003039701A2 (en) * 2001-10-23 2003-05-15 University Of Maine Selective separation and concentration of toxic nerve agents
CN1301406C (en) * 2004-05-27 2007-02-21 上海烟草（集团）公司 Automatic multi-dimensional gas-phase chromatographic system and use with non-valve pressure switching

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003039701A2 (en) * 2001-10-23 2003-05-15 University Of Maine Selective separation and concentration of toxic nerve agents
WO2003039701A3 (en) * 2001-10-23 2003-08-21 Univ Maine Selective separation and concentration of toxic nerve agents
CN1301406C (en) * 2004-05-27 2007-02-21 上海烟草（集团）公司 Automatic multi-dimensional gas-phase chromatographic system and use with non-valve pressure switching

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees