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GB1255962A - Improvements in or relating to gas chromatography-mass spectrometry - Google Patents

Improvements in or relating to gas chromatography-mass spectrometry

Info

Publication number
GB1255962A
GB1255962A GB32335/68A GB3233568A GB1255962A GB 1255962 A GB1255962 A GB 1255962A GB 32335/68 A GB32335/68 A GB 32335/68A GB 3233568 A GB3233568 A GB 3233568A GB 1255962 A GB1255962 A GB 1255962A
Authority
GB
United Kingdom
Prior art keywords
carrier gas
ion source
sample
ion
monitor electrode
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
GB32335/68A
Inventor
Andrew Mccormick
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.)
UK Atomic Energy Authority
Original Assignee
UK Atomic Energy Authority
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 UK Atomic Energy Authority filed Critical UK Atomic Energy Authority
Priority to GB32335/68A priority Critical patent/GB1255962A/en
Priority to US835706A priority patent/US3641339A/en
Priority to FR6922861A priority patent/FR2014521B1/fr
Publication of GB1255962A publication Critical patent/GB1255962A/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
    • G01N30/62—Detectors specially adapted therefor
    • G01N30/72—Mass spectrometers
    • G01N30/7206—Mass spectrometers interfaced to gas chromatograph
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J49/00—Particle spectrometers or separator tubes
    • H01J49/02—Details
    • H01J49/10—Ion sources; Ion guns
    • H01J49/14—Ion sources; Ion guns using particle bombardment, e.g. ionisation chambers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J49/00—Particle spectrometers or separator tubes
    • H01J49/26—Mass spectrometers or separator tubes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J49/00—Particle spectrometers or separator tubes
    • H01J49/26—Mass spectrometers or separator tubes
    • H01J49/28—Static spectrometers
    • H01J49/32—Static spectrometers using double focusing
    • H01J49/326—Static spectrometers using double focusing with magnetic and electrostatic sectors of 90 degrees

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (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)

Abstract

1,255,962. Mass spectrometers. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 16 June, 1969 [5 July, 1968], No. 32335/68. Heading H1D. In a combined gas chromatography-mass spectrometry system in which the output from a gas chromatographic column 1, comprising samples mixed with a carrier gas, is fed to the ion source 3, a transverse magnetic field, e.g. from permanent magnet 9, is applied to the ion beam from the ion source 3 to deflect the relatively light carrier gas ions in the beam and prevent them from impinging on a total ion beam monitor electrode 14, whilst leaving the relatively heavy sample ions substantially undeflected. The beam monitor electrode 14 precedes a mass analyser 6 and the magnet 9 is disposed between ion source 3 and the monitor electrode 14. As shown, the magnet 9, disposed adjacent beam-aligning electrodes 17, 18, is located between ion source 3 and an electrostatic analyser 5 which further separates the carrier gas beam 10 and the sample ion beam 11. An apertured electrode 13 intercepts the carrier gas beam 10 but passes sample beam 11 which is partly intercepted by beam monitor electrode 14 which detects the presence of a peak in the sample ions and initiates magnetic scans in the sector 6 to determine the mass spectra of successive corresponding samples from column 1. In an alternative embodiment, Fig. 2 (not shown), at least one pair of beam-aligning electrodes is disposed parallel to the ion beam and the magnetic field is applied before these electrodes so that the carrier gas beam is deflected outside the plates and does not enter the electrostatic sector 5. The magnetic field may also be formed by an electromagnet, and the carrier gas may be helium or hydrogen. The ion source 3 uses a 50 ev. electron beam to ionize the sample and carrier.
GB32335/68A 1968-07-05 1968-07-05 Improvements in or relating to gas chromatography-mass spectrometry Expired GB1255962A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB32335/68A GB1255962A (en) 1968-07-05 1968-07-05 Improvements in or relating to gas chromatography-mass spectrometry
US835706A US3641339A (en) 1968-07-05 1969-06-23 Gas chromatography- mass spectrometry
FR6922861A FR2014521B1 (en) 1968-07-05 1969-07-04

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB32335/68A GB1255962A (en) 1968-07-05 1968-07-05 Improvements in or relating to gas chromatography-mass spectrometry

Publications (1)

Publication Number Publication Date
GB1255962A true GB1255962A (en) 1971-12-08

Family

ID=10337007

Family Applications (1)

Application Number Title Priority Date Filing Date
GB32335/68A Expired GB1255962A (en) 1968-07-05 1968-07-05 Improvements in or relating to gas chromatography-mass spectrometry

Country Status (3)

Country Link
US (1) US3641339A (en)
FR (1) FR2014521B1 (en)
GB (1) GB1255962A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2225159A (en) * 1988-11-18 1990-05-23 Vg Instr Group Mass spectrometers

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4927289A (en) * 1972-06-30 1974-03-11
JPS4969184A (en) * 1972-11-04 1974-07-04
JPS5346116B2 (en) * 1973-10-12 1978-12-11
JPS50129169U (en) * 1974-04-03 1975-10-23
JPS50132987A (en) * 1974-04-04 1975-10-21
JPS5115386U (en) * 1974-07-19 1976-02-04
JPS5836464B2 (en) * 1975-09-12 1983-08-09 株式会社島津製作所 sekisouchi
US4117713A (en) * 1977-01-28 1978-10-03 Westinghouse Electric Corp. Particulography as an on-line technique for detection and location of faults within a gas-cooled dynamoelectric machine caused by overheating
JPS52141694A (en) * 1977-05-13 1977-11-26 Hitachi Ltd Whole ion detecting apparatus
US4472631A (en) * 1982-06-04 1984-09-18 Research Corporation Combination of time resolution and mass dispersive techniques in mass spectrometry
US4517461A (en) * 1982-11-29 1985-05-14 Phillips Petroleum Co Carbon isotope analysis of hydrocarbons
GB8803837D0 (en) * 1988-02-18 1988-03-16 Vg Instr Group Mass spectrometer
US5153433A (en) * 1991-09-10 1992-10-06 The United States Of America As Represented By The United States Department Of Energy Portable mass spectrometer with one or more mechanically adjustable electrostatic sectors and a mechanically adjustable magnetic sector all mounted in a vacuum chamber
US5204530A (en) * 1991-12-27 1993-04-20 Philippe Chastagner Noise reduction in negative-ion quadrupole mass spectrometry
US5391870A (en) * 1993-09-01 1995-02-21 High Voltage Engineering Europa B.V. High-speed precision mass selection system
US5525799A (en) * 1994-04-08 1996-06-11 The United States Of America As Represented By The United States Department Of Energy Portable gas chromatograph-mass spectrometer
US5539204A (en) * 1995-02-10 1996-07-23 Regents Of The University Of California Mass spectrometer vacuum housing and pumping system
US6043488A (en) * 1997-08-18 2000-03-28 The Perkin-Elmer Corporation Carrier gas separator for mass spectroscopy
EP0982757A1 (en) * 1998-08-25 2000-03-01 The Perkin-Elmer Corporation Carrier gas separator for mass spectroscopy
JP3967694B2 (en) * 2003-06-26 2007-08-29 日本電子株式会社 Time-of-flight mass spectrometer
WO2019195896A1 (en) * 2018-04-13 2019-10-17 ETP Ion Detect Pty Ltd Sample analysis apparatus having improved input optics and component arrangement

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3475604A (en) * 1965-09-30 1969-10-28 Hitachi Ltd Mass spectrometer having means for simultaneously detecting single focussing and double focussing mass spectra
US3455092A (en) * 1965-12-06 1969-07-15 Varian Associates Gas analyzer inlet system for gaseous state materials

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2225159A (en) * 1988-11-18 1990-05-23 Vg Instr Group Mass spectrometers
US5036195A (en) * 1988-11-18 1991-07-30 Vg Instruments Group Limited Gas analyzer
GB2225159B (en) * 1988-11-18 1993-05-05 Vg Instr Group Gas analyzer

Also Published As

Publication number Publication date
US3641339A (en) 1972-02-08
FR2014521B1 (en) 1975-08-22
FR2014521A1 (en) 1970-04-17

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