Radiant energy – Ionic separation or analysis – Cyclically varying ion selecting field means
Reexamination Certificate
2006-02-09
2010-10-12
Berman, Jack I (Department: 2881)
Radiant energy
Ionic separation or analysis
Cyclically varying ion selecting field means
C250S281000, C250S282000, C250S292000
Reexamination Certificate
active
07812309
ABSTRACT:
A method of transmitting ions along an analyzer region between closely spaced electrodes is disclosed. The method includes providing an analyzer region for transmitting ions, the analyzer region in fluid communication with an ionization source and with an ion detecting device. The method further includes affecting a pressure within at least one portion of the analyzer region, to differ from the pressure within another part of the analyzer region, and providing an electric field that is synchronized with the pressure differences to focus the ions.
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Guevremont Maria
Guevremont Roger
Thekkadath Govindanunny
Berman Jack I
Ippolito Rausch Nicole
Katz Charles B.
Thermo Finnigan LLC
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