Title:
ION TRAP MASS SPECTROMETRY
Document Type and Number:
WIPO Patent Application WO2004070763
Kind Code:
A3
Abstract:
An ion trap mass spectrometer having a ring electrode (100) and end cap electrodes (107 and 108) wherein the ring electrode is segmented into a plurality of electrode portions (304-307) such that controllable excitation of an ion species is effected.
Inventors:
WANG YANG (US)
Application Number:
PCT/US2004/002603
Publication Date:
November 17, 2005
Filing Date:
January 30, 2004
Export Citation:
Assignee:
WANG YANG (US)
International Classes:
B01D59/44; H01J49/00; H01J49/42; H01J; (IPC1-7): H01J49/00
Foreign References:
| US5468958A | 1995-11-21 | |||
| US6075244A | 2000-06-13 |
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