GB1469906A - Sample inlet valve for liquid chromatography - Google Patents

Sample inlet valve for liquid chromatography

Info

Publication number
GB1469906A
GB1469906A GB1364775A GB1364775A GB1469906A GB 1469906 A GB1469906 A GB 1469906A GB 1364775 A GB1364775 A GB 1364775A GB 1364775 A GB1364775 A GB 1364775A GB 1469906 A GB1469906 A GB 1469906A
Authority
GB
United Kingdom
Prior art keywords
seal
groove
chromatography
inlet valve
april
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
GB1364775A
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.)
Bayer AG
Original Assignee
Bayer AG
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 Bayer AG filed Critical Bayer AG
Publication of GB1469906A publication Critical patent/GB1469906A/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
    • G01N30/04—Preparation or injection of sample to be analysed
    • G01N30/16—Injection
    • G01N30/20—Injection using a sampling valve
    • 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
    • G01N30/16—Injection
    • G01N30/20—Injection using a sampling valve
    • G01N2030/204—Linearly moving valves, e.g. sliding valves

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)
  • Treatment Of Liquids With Adsorbents In General (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

1469906 Chromatography BAYER AG 3 April 1975 [6 April 1974] 13647/75 Heading B1H [Also in Division F2] A sample inlet valve for liquid chromatography has a metering rod 3 axially displaceable by a pneumatic piston cylinder 1, 2 from a position shown in which an annular groove 4 can dip into a sample liquid outside the value to a position in which the groove is aligned with pipes 9, 10 connected respectively to an eluent and a chromatography column. The rod is sealed by an asymmetrical double-cone seal 7 housed in a metal sleeve 12 and a seal 6 both of which are loaded by a plate spring 13 and are formed of PTFE or polyamide containing finely divided glass, mica or graphite. The spring 13 is adjusted by a nut 15 and the groove 4 can be adjusted relative pipes 9, 10 by a screw threaded sleeve 17. The angle of the outwardly pointing tip of the seal 7 is between 5‹ and 15‹ whilst the angle of the inwardly pointing tip is between 70‹ and 120‹. Hydraulic or electric actuation may be used.
GB1364775A 1974-04-06 1975-04-03 Sample inlet valve for liquid chromatography Expired GB1469906A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742416820 DE2416820A1 (en) 1974-04-06 1974-04-06 SAMPLE INLET VALVE FOR LIQUID CHROMATOGRAPHY

Publications (1)

Publication Number Publication Date
GB1469906A true GB1469906A (en) 1977-04-06

Family

ID=5912337

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1364775A Expired GB1469906A (en) 1974-04-06 1975-04-03 Sample inlet valve for liquid chromatography

Country Status (3)

Country Link
DE (1) DE2416820A1 (en)
FR (1) FR2266886B1 (en)
GB (1) GB1469906A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3306608A1 (en) * 1983-02-25 1984-08-30 Metallwerke Neheim, Goeke & Co Kg, 5760 Arnsberg Heating valve
CN114814047A (en) * 2022-07-01 2022-07-29 北京凯隆分析仪器有限公司 Chromatographic liquid phase sampling valve
CN115046802A (en) * 2022-08-11 2022-09-13 稀美资源(广东)有限公司 Tantalum ethanol sampling device

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4094196A (en) * 1977-02-25 1978-06-13 Waters Associates, Inc. Sample injection with automatic cleaning of sampling conduit
US4094195A (en) * 1977-02-25 1978-06-13 Waters Associates, Inc. Novel seal and apparatus including same
FR2652897B1 (en) * 1989-10-10 1994-01-07 Institut Francais Petrole DEVICE AND METHOD FOR TRANSFERRING A SAMPLE OF FLUID BETWEEN TWO CHAMBERS AND APPLICATION IN PARTICULAR TO GAS CHROMATOGRAPHY.
FR2919729B1 (en) * 2007-08-03 2012-03-02 Horiba Abx Sas DEVICE FOR PREPARING AND DISTRIBUTING FRACTIONAL SAMPLES OF A FLUID, DISPENSING SYSTEM COMPRISING SUCH A DEVICE AND ASSOCIATED METHOD

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3306608A1 (en) * 1983-02-25 1984-08-30 Metallwerke Neheim, Goeke & Co Kg, 5760 Arnsberg Heating valve
CN114814047A (en) * 2022-07-01 2022-07-29 北京凯隆分析仪器有限公司 Chromatographic liquid phase sampling valve
CN114814047B (en) * 2022-07-01 2024-04-30 北京凯隆分析仪器有限公司 Chromatographic liquid phase sampling valve
CN115046802A (en) * 2022-08-11 2022-09-13 稀美资源(广东)有限公司 Tantalum ethanol sampling device
CN115046802B (en) * 2022-08-11 2022-10-25 稀美资源(广东)有限公司 Tantalum ethanol sampling device

Also Published As

Publication number Publication date
FR2266886A1 (en) 1975-10-31
FR2266886B1 (en) 1978-10-27
DE2416820A1 (en) 1975-10-09

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee