JPS57132059A - Pollution estimating method for flow passage or the like gas chromatography - Google Patents

Pollution estimating method for flow passage or the like gas chromatography

Info

Publication number
JPS57132059A
JPS57132059A JP1749581A JP1749581A JPS57132059A JP S57132059 A JPS57132059 A JP S57132059A JP 1749581 A JP1749581 A JP 1749581A JP 1749581 A JP1749581 A JP 1749581A JP S57132059 A JPS57132059 A JP S57132059A
Authority
JP
Japan
Prior art keywords
column
flow passage
gas
carrier gas
pollution
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
JP1749581A
Other languages
Japanese (ja)
Other versions
JPS6229025B2 (en
Inventor
Tsuneaki Maeda
Eiichi Okubo
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.)
Denka Co Ltd
DKK Corp
Original Assignee
DKK Corp
Denki Kagaku Kogyo 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 DKK Corp, Denki Kagaku Kogyo KK filed Critical DKK Corp
Priority to JP1749581A priority Critical patent/JPS57132059A/en
Publication of JPS57132059A publication Critical patent/JPS57132059A/en
Publication of JPS6229025B2 publication Critical patent/JPS6229025B2/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
    • G01N30/26—Conditioning of the fluid carrier; Flow patterns
    • G01N30/38—Flow patterns
    • G01N30/40—Flow patterns using back flushing

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)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
  • Treatment Of Liquids With Adsorbents In General (AREA)

Abstract

PURPOSE:To estimate a pollution state and to perform an accurate measurement of gas, by carrying out a back flush of a gas chromatography and removing a pollutant of a flow passage and valve between a gas bomb and a column, and then, measuring a peak eluted collectively. CONSTITUTION:In a measuring apparatus flowing carrier gas in a column 6 in a reverse direction by switching a step 1 of a flow passage shown by a dotted line 4 which is provided with a switching valve 4, to a step 2 of the flow passage shown by a solid line and sending nonmethane hydrocarbons to a gas detector (FID) 9 to measure said hydrocarbons, water is introduced into the carrier gas in a column 6 in an early stage of analysis and steam is passed through the column 6. Next, the carrier gas flows in the column 6 in a reverse direction from the early stage by the flow passage step 2 shown by a dotted line and a peak eluted collectively is measured and a pollutant of the column 6, the flow passage of the carrier gas in the upper stream side of the column and a pressure control valve 2, are measured by the FID9. The pollution is estimated by using this result and the accurate analysis is carried out by correcting the measured value of nonmethane hydrocarbons.
JP1749581A 1981-02-10 1981-02-10 Pollution estimating method for flow passage or the like gas chromatography Granted JPS57132059A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1749581A JPS57132059A (en) 1981-02-10 1981-02-10 Pollution estimating method for flow passage or the like gas chromatography

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1749581A JPS57132059A (en) 1981-02-10 1981-02-10 Pollution estimating method for flow passage or the like gas chromatography

Publications (2)

Publication Number Publication Date
JPS57132059A true JPS57132059A (en) 1982-08-16
JPS6229025B2 JPS6229025B2 (en) 1987-06-24

Family

ID=11945575

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1749581A Granted JPS57132059A (en) 1981-02-10 1981-02-10 Pollution estimating method for flow passage or the like gas chromatography

Country Status (1)

Country Link
JP (1) JPS57132059A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61178468U (en) * 1985-04-25 1986-11-07

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5442593U (en) * 1977-08-31 1979-03-22

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5395589A (en) * 1977-02-02 1978-08-21 Nippon Telegr & Teleph Corp <Ntt> Semiconductor light amplifying device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5442593U (en) * 1977-08-31 1979-03-22

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61178468U (en) * 1985-04-25 1986-11-07

Also Published As

Publication number Publication date
JPS6229025B2 (en) 1987-06-24

Similar Documents

Publication Publication Date Title
DK0586659T3 (en) Method and apparatus for rapid testing of the integrity of filter elements
NO893861L (en) PROCEDURE AND APPARATUS FOR ANALYSIS OF MULTIPHASE FLOWING A HYDROCARBON BROWN.
DE208045T1 (en) METHOD FOR DETERMINING THE ACCURACY OF A GAS MEASURING INSTRUMENT.
EP0753153A1 (en) Analysis method and analysis apparatus
JPS56122935A (en) Gas analyzing device of fluid modulation system
US7354552B2 (en) Gas chromatograph with flame ionisation detector for parallel hydrocarbon analysis
JPS58184531A (en) Apparatus for measuring or controlling dividing ratio of gas stream
JPS57132059A (en) Pollution estimating method for flow passage or the like gas chromatography
US3152470A (en) Thermochromatographic apparatus and method of analysis
JPS5460994A (en) Measuring method of gas permeability of porous substances
US3498106A (en) Chromatographic analysis
DE59608397D1 (en) Method for determining the gas flow in a flow channel
JPS57192863A (en) Method of and apparatus for switching sample
JPS57111445A (en) Gas chromatography
JPS56117122A (en) Automatic testing device for flow rate or the like using sound speed nozzle
JPH0961361A (en) Continuous ammonia concentration measuring device
JP2002005915A (en) Gas chromatographic device
JPS57211552A (en) Gas chromatograph
JPS57179726A (en) Method and device for measuring volatile component in liquid
Rathbun et al. Experimental modeling of the oxygen absorption characteristics of streams and rivers
JPS5657932A (en) Water leak detecting method for plural flow paths
JPS57132058A (en) Sampling system
JPS5653460A (en) Analyzing method for constituent of low molecular weight
JPS6473251A (en) Gas chromatograph measurement
JPS60252240A (en) Equipment for monitoring dissolved gas in oil