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Canadian Patents Database

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Patent Summary

(12) Patent Application: (11) CA 2447057
(54) English Title: MASS SPECTROMETER
(54) French Title: SPECTROMETRE DE MASSE

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Abstracts

English Abstract



A mass spectrometer is disclosed comprising a mass
filter 1 for separating ions according to their mass to
charge ratio. The mass filter 1 comprises a plurality
of electrodes 3 wherein ions are radially confined
within the mass filter 1 by the application of AC or RF
voltages to the electrodes 3. One or more transient DC
voltages or one or more transient DC voltage waveforms
are progressively applied to the electrodes 3 so that
ions having a certain mass to charge ratio are separated
from other ions having different mass to charge ratios
which remain radially confined within the mass filter 1.



Patent Details

(51) International Patent Classification (IPC):
  • H01J 49/26 (2006.01)
  • H01J 49/42 (2006.01)
(72) Inventors (Country):
  • BATEMAN, ROBERT HAROLD (United Kingdom)
  • GILES, KEVIN (United Kingdom)
  • HOYES, JOHN BRIAN (United Kingdom)
  • PRINGLE, STEVE (United Kingdom)
  • WILDGOOSE, JASON LEE (United Kingdom)
(73) Owners (Country):
  • MICROMASS UK LIMITED (United Kingdom)
(71) Applicants (Country):
  • MICROMASS UK LIMITED (United Kingdom)
(74) Agent: RIDOUT & MAYBEE LLP
(45) Issued:
(22) Filed Date: 2003-10-28
(41) Open to Public Inspection: 2004-05-08
(30) Availability of licence: N/A
(30) Language of filing: English

(30) Application Priority Data:
Application No. Country Date
0226017.2 United Kingdom 2002-11-08

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