Radiant energy – Ionic separation or analysis – With plural – simultaneous ion generators
Reexamination Certificate
2006-06-06
2006-06-06
Wells, Nikita (Department: 2881)
Radiant energy
Ionic separation or analysis
With plural, simultaneous ion generators
C250S281000, C250S283000, C250S292000, C250S293000, C250S295000, C250S397000, C250S282000
Reexamination Certificate
active
07057167
ABSTRACT:
A method for filtering ions having a selected mass-to-charge ratio is set forth. In accordance with the method, one or more ions are injected into ion inlets of first and second ion selection chambers in a generally concurrent manner. The first and second ion selection chambers each have a corresponding ion outlet. The first ion selection chamber has a first plurality of electrodes disposed between the respective ion inlet and ion outlet and the said second ion selection chamber has a second plurality of electrodes disposed between its respective ion inlet and ion outlet. One or more RF signals are applied to the first and second plurality of electrodes to generate a rotating electric field respectively in each of the first and second ion selection chambers. Ions exiting the ion outlets of the first and second ion selection chambers, for example, to generate a mass spectrum for the injected ions.
REFERENCES:
patent: 2939952 (1960-06-01), Paul et al.
patent: 3796872 (1974-03-01), Merren
patent: 3886357 (1975-05-01), Naito
patent: 4126804 (1978-11-01), Asam et al.
patent: 4208582 (1980-06-01), Arnush et al.
patent: 5514868 (1996-05-01), Dixon
patent: 5726448 (1998-03-01), Smith et al.
patent: 6153880 (2000-11-01), Russ, IV et al.
patent: 6410914 (2002-06-01), Park et al.
patent: 6521887 (2003-02-01), Funsten et al.
patent: 6545268 (2003-04-01), Verentchikov et al.
patent: 2003/0201387 (2003-10-01), Hartley et al.
patent: 4446230 (1996-07-01), None
patent: 1267386 (2002-12-01), None
patent: WO 02/01599 (2002-01-01), None
Search Report dated Jun. 8, 2005, for corresponding International Application No. PCT/US2004/009356.
Ferran, R. J. et al.; “High-pressure effects in miniature arrays of quadrupole analyzers for residual gas analysis from 10−9to 10−2Torr”;J. Vac. Sci. Technol. A1996, vol. 14, No. 3, pp. 1258-1265.
Clemmons, J. H. et al.; “Mass spectroscopy using a rotating electric field”;Review of Scientific Instrumentsvol. 69, No. 6, pp. 2285-2291.
Beckman Coulter Inc.
Maginot Moore & Beck
Wells Nikita
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