GB1361761A - Multipole mass filters - Google Patents

Multipole mass filters

Info

Publication number
GB1361761A
GB1361761A GB148872A GB148872A GB1361761A GB 1361761 A GB1361761 A GB 1361761A GB 148872 A GB148872 A GB 148872A GB 148872 A GB148872 A GB 148872A GB 1361761 A GB1361761 A GB 1361761A
Authority
GB
United Kingdom
Prior art keywords
electrodes
tubes
main
pair
auxiliary electrodes
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
GB148872A
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.)
HP Inc
Original Assignee
Hewlett Packard Co
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 Hewlett Packard Co filed Critical Hewlett Packard Co
Publication of GB1361761A publication Critical patent/GB1361761A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01J49/34—Dynamic spectrometers
    • H01J49/42—Stability-of-path spectrometers, e.g. monopole, quadrupole, multipole, farvitrons
    • H01J49/4205—Device types
    • H01J49/421—Mass filters, i.e. deviating unwanted ions without trapping
    • H01J49/4215—Quadrupole mass filters
    • 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
    • H01J49/34—Dynamic spectrometers
    • H01J49/42—Stability-of-path spectrometers, e.g. monopole, quadrupole, multipole, farvitrons
    • H01J49/4205—Device types
    • H01J49/4255—Device types with particular constructional features

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
  • Electron Tubes For Measurement (AREA)

Abstract

1361761 Mass spectrometers HEWLETTPACKARD CO 12 Jan 1972 [8 Feb 1971] 1488/72 Heading H1D A multipole mass filter comprises parallel main electrodes 12, 14, 16, 18, opposing pairs being connected in common to one pole of a drive circuit 20 providing antiphase outputs having direct and alternating current components, and between the main electrodes auxiliary electrodes 22 to each of which an adjustable D.C. voltage can be applied from sources 36. In Fig. 1 two flattened tubes form the auxiliary electrodes 22 between each pair of main electrodes and the two tubes nearest each main electrode are strapped together. Insulators 24 separate the tubes. A pair of radially spaced electrodes may be provided, Fig. 6 (not shown). In Figs. 7 to 9 (not shown) auxiliary electrodes in the form of rectangular strips, combs and bifilar helices are illustrated.
GB148872A 1971-02-08 1972-01-12 Multipole mass filters Expired GB1361761A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11331271A 1971-02-08 1971-02-08

Publications (1)

Publication Number Publication Date
GB1361761A true GB1361761A (en) 1974-07-30

Family

ID=22348732

Family Applications (1)

Application Number Title Priority Date Filing Date
GB148872A Expired GB1361761A (en) 1971-02-08 1972-01-12 Multipole mass filters

Country Status (5)

Country Link
US (1) US3725700A (en)
JP (1) JPS5322874B1 (en)
DE (1) DE2202589A1 (en)
FR (1) FR2124551B1 (en)
GB (1) GB1361761A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2238904A (en) * 1989-11-22 1991-06-12 Jeol Ltd Electrostatic multipole lens for charged-particle beam.

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4885470A (en) * 1987-10-05 1989-12-05 The United States Of America As Represented By The United States Department Of Energy Integrally formed radio frequency quadrupole
US4985626A (en) * 1990-01-09 1991-01-15 The Perkin-Elmer Corporation Quadrupole mass filter for charged particles
DE69733887D1 (en) * 1996-05-14 2005-09-08 Analytica Of Branford Inc ION TRANSFER OF MULTIPOLION LEADERS IN MULTIPOLION LEADERS AND ION CASES
US6452167B1 (en) * 1998-05-20 2002-09-17 Sandia National Laboratories Miniature quadrupole mass spectrometer having a cold cathode ionization source
EP1137046A2 (en) * 2000-03-13 2001-09-26 Agilent Technologies Inc. a Delaware Corporation Manufacturing precision multipole guides and filters
US6940068B2 (en) * 2002-01-03 2005-09-06 Reliance Gear Company Limited Quadrupole mass filter
GB2390222B (en) * 2003-07-31 2004-05-19 Reliance Gear Company Ltd Quadrupole mass filter
US7166836B1 (en) * 2005-09-07 2007-01-23 Agilent Technologies, Inc. Ion beam focusing device
CN102820190B (en) * 2012-08-28 2015-04-22 复旦大学 Assembly method of quadrupole mass analyzer
CN112534548B (en) * 2018-08-24 2024-04-09 Dh科技发展私人贸易有限公司 RF/DC cut-off for enhanced robustness and reduced contamination of mass spectrometry systems

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3147445A (en) * 1959-11-05 1964-09-01 Thompson Ramo Wooldridge Inc Quadrupole focusing means for charged particle containment
US3321623A (en) * 1963-05-13 1967-05-23 Bell & Howell Co Multipole mass filter having means for applying a voltage gradient between diametrically opposite electrodes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2238904A (en) * 1989-11-22 1991-06-12 Jeol Ltd Electrostatic multipole lens for charged-particle beam.
GB2238904B (en) * 1989-11-22 1994-04-20 Jeol Ltd Electrostatic multipole lens for charged-particle beam

Also Published As

Publication number Publication date
DE2202589A1 (en) 1972-09-07
FR2124551B1 (en) 1976-07-23
JPS5322874B1 (en) 1978-07-11
US3725700A (en) 1973-04-03
FR2124551A1 (en) 1972-09-22

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee