Title:
ELECTRIC SECTOR TIME-OF-FLIGHT MASS SPECTROMETER WITH ADJUSTABLE ION OPTICAL ELEMENTS
Document Type and Number:
WIPO Patent Application WO2004030008
Kind Code:
A3
Abstract:
The invention provides apparatus and methods for performing time-of-flight (TOF) mass spectrometry (200). A TOF mass spectrometer of the present invention comprises one or more ion focusing electric sectors (250, 350, 450, and 550). . At least one of the electric sectors is associated with an ion optical element (266, 267). The ion optical elements (266, 267) comprise at least one adjustable electrode (260, 261), such that the adjustable electrode (260, 261)is able to modify the potential experienced by an ion entering (70) or exiting (72) the electric sector (250, 350, 450, or 550) with which it is associated.
Inventors:
BUTTRILL SIDNEY E JR (US)
Application Number:
PCT/US2003/027974
Publication Date:
December 16, 2004
Filing Date:
September 04, 2003
Export Citation:
Assignee:
CIPHERGEN BIOSYSTEMS INC (US)
BUTTRILL SIDNEY E JR (US)
BUTTRILL SIDNEY E JR (US)
International Classes:
H01J49/28; H01J49/40; (IPC1-7): H01J49/40; H01J49/22
Foreign References:
| US6674069B1 | 2004-01-06 | |||
| US4472631A | 1984-09-18 |
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