GB1088922A - Improvements in or relating to gas chromatography detectors - Google Patents

Improvements in or relating to gas chromatography detectors

Info

Publication number
GB1088922A
GB1088922A GB22360/65A GB2236065A GB1088922A GB 1088922 A GB1088922 A GB 1088922A GB 22360/65 A GB22360/65 A GB 22360/65A GB 2236065 A GB2236065 A GB 2236065A GB 1088922 A GB1088922 A GB 1088922A
Authority
GB
United Kingdom
Prior art keywords
detector
gas
signal
vessel
circuit
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
GB22360/65A
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries Ltd
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 Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1088922A publication Critical patent/GB1088922A/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
    • G01N30/86—Signal analysis
    • G01N30/8665—Signal analysis for calibrating the measuring apparatus
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
    • G01N1/38—Diluting, dispersing or mixing samples
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/62—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/62—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode
    • G01N27/626—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode using heat to ionise a gas
    • 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
    • G01N30/62—Detectors specially adapted therefor
    • G01N30/64—Electrical detectors
    • G01N30/68—Flame ionisation detectors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
    • G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
    • G01T1/16—Measuring radiation intensity
    • G01T1/185—Measuring radiation intensity with ionisation chamber arrangements
    • 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
    • G01N30/62—Detectors specially adapted therefor
    • G01N2030/621—Detectors specially adapted therefor signal-to-noise ratio
    • G01N2030/625—Detectors specially adapted therefor signal-to-noise ratio by measuring reference material, e.g. carrier without sample

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Electrochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Molecular Biology (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

1,088,922. Gas chromatography, electrical. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. May 26, 1965 [May 29, 1964], No.22360/65. Heading G1N. Relates to the determination, in a gas chromatograph apparatus, of the relationship between the output signal from a detector and the quantity of the gas component passing through the detector. A known quantity of a gas component is supplied to a vessel 1 through which an inert gas flows, is intimately mixed therewith by a stirrer 21 and leaves the vessel having a composition in which the concentration of the component in the inert gas, decreases exponentially with time. The signal output, from a flame ionization detector 5, 6, across a resistor R7, is amplified and compared with an exponentially varying, reference signal from an R. C. circuit, applied across a resistor R16, and a resulting difference signal, which should be zero if the R. C. circuit is properly adjusted, is applied to a display unit 10. In the said R. C. circuit a capacitor 11 is charged by a voltage source 12 when a D. P. switch 12 is closed. A variable resistor 17 is adjusted so that the initial signal from C11 through R15 to R16, is equal and opposite to the initial signal from the detector appearing across R16. The switch 13 is then opened and R14 is adjusted so that the difference signal appearing across R16 remains zero as a function of time. The flame ionization detector which has an electrode 6 and burner 5 connected to a 100 volt source 8, receives combustible gases from a passage 23 and the mixture of inert carrier gas with gas component from the vessel 1. Alternatively the detector may be a catharometer type or radio-active type.
GB22360/65A 1964-05-29 1965-05-26 Improvements in or relating to gas chromatography detectors Expired GB1088922A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6406030A NL6406030A (en) 1964-05-29 1964-05-29

Publications (1)

Publication Number Publication Date
GB1088922A true GB1088922A (en) 1967-10-25

Family

ID=19790194

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22360/65A Expired GB1088922A (en) 1964-05-29 1965-05-26 Improvements in or relating to gas chromatography detectors

Country Status (5)

Country Link
DE (1) DE1269826B (en)
FR (1) FR1435458A (en)
GB (1) GB1088922A (en)
NL (1) NL6406030A (en)
SE (1) SE322362B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0184892A1 (en) * 1984-12-14 1986-06-18 The Perkin-Elmer Corporation Ionization detector for gas chromatography and method therefor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0184892A1 (en) * 1984-12-14 1986-06-18 The Perkin-Elmer Corporation Ionization detector for gas chromatography and method therefor

Also Published As

Publication number Publication date
SE322362B (en) 1970-04-06
FR1435458A (en) 1966-04-15
NL6406030A (en) 1965-11-30
DE1269826B (en) 1968-06-06

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