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JPS57192863A - Method of and apparatus for switching sample - Google Patents

Method of and apparatus for switching sample

Info

Publication number
JPS57192863A
JPS57192863A JP7828081A JP7828081A JPS57192863A JP S57192863 A JPS57192863 A JP S57192863A JP 7828081 A JP7828081 A JP 7828081A JP 7828081 A JP7828081 A JP 7828081A JP S57192863 A JPS57192863 A JP S57192863A
Authority
JP
Japan
Prior art keywords
sample
switched
passage
valve
inlet section
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.)
Granted
Application number
JP7828081A
Other languages
Japanese (ja)
Other versions
JPH0470586B2 (en
Inventor
Makoto Nishikawa
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.)
Shimadzu Corp
Shimazu Seisakusho KK
Original Assignee
Shimadzu Corp
Shimazu Seisakusho KK
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 Shimadzu Corp, Shimazu Seisakusho KK filed Critical Shimadzu Corp
Priority to JP7828081A priority Critical patent/JPS57192863A/en
Publication of JPS57192863A publication Critical patent/JPS57192863A/en
Publication of JPH0470586B2 publication Critical patent/JPH0470586B2/ja
Granted 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

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)

Abstract

PURPOSE:To obtain an accurate analysis value with limited sample as well as a shorter replacement time by a method wherein a new sample is switched to be connected to a sample passage and fed to an analyzer after complete removal of the residual sample using limited amounte fo the new sample by interruption of the flow thereof several times. CONSTITUTION:In a sample switching device 1 to an analyzer 7 of a gas chromatograph or the like, a sample is fed to a sampling valve 5 via a sample passage 4 by way of solenoid valves 3a and 3b separably provided on pipings 2a and 2b of samples A and B and the valve 5 are switched with a controller 8 according to a predetermined program. The valve 5 has and switches an inlet section 6a and an outlet section 6b of a weighing tube 6, an inlet section 6a of a carrier gas c, an inlet section 6b to the analyzer 7, an inlet section from the passage 4 and paths 5a, 5b and 5c to a drain section 9 from one to another by turning. After the previous sample A is switched to a sample B, the sample A left in or attached to the passage 4, the weighing tube 6 and the like is washed by interrupting the flow of the sample B and the valve 5 is switched to feed the sample B to a measuring device 7.
JP7828081A 1981-05-23 1981-05-23 Method of and apparatus for switching sample Granted JPS57192863A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7828081A JPS57192863A (en) 1981-05-23 1981-05-23 Method of and apparatus for switching sample

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7828081A JPS57192863A (en) 1981-05-23 1981-05-23 Method of and apparatus for switching sample

Publications (2)

Publication Number Publication Date
JPS57192863A true JPS57192863A (en) 1982-11-27
JPH0470586B2 JPH0470586B2 (en) 1992-11-11

Family

ID=13657546

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7828081A Granted JPS57192863A (en) 1981-05-23 1981-05-23 Method of and apparatus for switching sample

Country Status (1)

Country Link
JP (1) JPS57192863A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4872334A (en) * 1986-05-09 1989-10-10 The Dow Chemical Company Variable flow capillary gas chromatography method
EP0829715A3 (en) * 1996-08-15 1999-12-22 Kyoto Daiichi Kagaku Co., Ltd. Method and apparatus for performing liquid chromatography
US8343774B2 (en) 2008-02-29 2013-01-01 Waters Technologies Corporation Chromatography-based monitoring and control of multiple process streams

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4531596Y1 (en) * 1966-12-23 1970-12-03

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4531596Y1 (en) * 1966-12-23 1970-12-03

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4872334A (en) * 1986-05-09 1989-10-10 The Dow Chemical Company Variable flow capillary gas chromatography method
EP0829715A3 (en) * 1996-08-15 1999-12-22 Kyoto Daiichi Kagaku Co., Ltd. Method and apparatus for performing liquid chromatography
US8343774B2 (en) 2008-02-29 2013-01-01 Waters Technologies Corporation Chromatography-based monitoring and control of multiple process streams

Also Published As

Publication number Publication date
JPH0470586B2 (en) 1992-11-11

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