JPS57111445A - Gas chromatography - Google Patents

Gas chromatography

Info

Publication number
JPS57111445A
JPS57111445A JP18670180A JP18670180A JPS57111445A JP S57111445 A JPS57111445 A JP S57111445A JP 18670180 A JP18670180 A JP 18670180A JP 18670180 A JP18670180 A JP 18670180A JP S57111445 A JPS57111445 A JP S57111445A
Authority
JP
Japan
Prior art keywords
column
valve
sampling
tube
flows
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.)
Pending
Application number
JP18670180A
Other languages
Japanese (ja)
Inventor
Michiaki Miura
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.)
Yokogawa Electric Corp
Original Assignee
Hokushin Electric Works Ltd
Yokogawa Hokushin Electric Corp
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 Hokushin Electric Works Ltd, Yokogawa Hokushin Electric Corp filed Critical Hokushin Electric Works Ltd
Priority to JP18670180A priority Critical patent/JPS57111445A/en
Publication of JPS57111445A publication Critical patent/JPS57111445A/en
Pending 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)
  • Sampling And Sample Adjustment (AREA)

Abstract

PURPOSE:To prevent the accumulation of sticking substances in a tube sending a sample to a detector, by providing a precut column near the sampling position at a remote sampling sysyem gas chromatography. CONSTITUTION:A precut column 28 is provided in a sample box 14 set up near a piping 11 (a mark 12 is a probe for sampling) in which a fluid to be measured flows and a change over valve 27 is arranged. The sample in a metering tube 21 of a sampling valve 19 flows to the valve 27 by changing over the valve 19. On this occasion, the sampled sample flows in the order of a precut column 28 and a preparation column 29 in a connecting state of the valve 27 shown by a real line at first and next an unnecessary component of to be detected in the column 28 is discharged from a tube 32 connecting to the valve 27 shown by a dotted line at a time of finishing the supply of a detecting component for the column 29 and then, only carrier gas flows to the column 29 (a mark 33 is a detector provided at a remote position, and 24 is a tube).
JP18670180A 1980-12-29 1980-12-29 Gas chromatography Pending JPS57111445A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18670180A JPS57111445A (en) 1980-12-29 1980-12-29 Gas chromatography

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18670180A JPS57111445A (en) 1980-12-29 1980-12-29 Gas chromatography

Publications (1)

Publication Number Publication Date
JPS57111445A true JPS57111445A (en) 1982-07-10

Family

ID=16193113

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18670180A Pending JPS57111445A (en) 1980-12-29 1980-12-29 Gas chromatography

Country Status (1)

Country Link
JP (1) JPS57111445A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012088133A (en) * 2010-10-19 2012-05-10 Shimadzu Corp Online sample introduction apparatus
JP2023155553A (en) * 2022-04-11 2023-10-23 株式会社島津製作所 Online sampling system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5119583A (en) * 1974-08-09 1976-02-16 Hitachi Ltd HAIGASUSAN PURINGUHOHO

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5119583A (en) * 1974-08-09 1976-02-16 Hitachi Ltd HAIGASUSAN PURINGUHOHO

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012088133A (en) * 2010-10-19 2012-05-10 Shimadzu Corp Online sample introduction apparatus
JP2023155553A (en) * 2022-04-11 2023-10-23 株式会社島津製作所 Online sampling system

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