Title:
QUADRUPOLE MASS SPECTROMETER WITH SPATIAL DISPERSION
Document Type and Number:
WIPO Patent Application WO2004017358
Kind Code:
B1
Abstract:
A mass analyzer for use in a mass spectrometry system comprises an elongate rod set. The rod set has first and second ends and an inscribed circle within the rod set. The radius of the rod set varies from one end of the rod set to the other, so that ions of different mass to charge ratios will become unstable at different locations along the rod set. This characteristic can then be used to cause ejection of ions at different locations along the rod set, in a mass dependent manner. Detectors placed linearly along the rod set can then be used to detect ions and determine the mass of the ions from their ejection locations.
Inventors:
THOMSON BRUCE (CA)
LOBODA ALEXANDRE V (CA)
LOBODA ALEXANDRE V (CA)
Application Number:
PCT/CA2003/001247
Publication Date:
May 13, 2004
Filing Date:
August 19, 2003
Export Citation:
Assignee:
MDS INC D B A MDS SCIEX (CA)
THOMSON BRUCE (CA)
LOBODA ALEXANDRE V (CA)
THOMSON BRUCE (CA)
LOBODA ALEXANDRE V (CA)
International Classes:
H01J49/00; G01N27/62; H01J49/06; H01J49/42; (IPC1-7): H01J49/42
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