Mass spectrometer

Details Mass spectrometer Mass spectrometer

2008-05-20

2008-05-20

Lee, John R. (Department: 2878)

Radiant energy

Ionic separation or analysis

Ion beam pulsing means with detector synchronizing means

C250S288000

Reexamination Certificate

active

11627460

ABSTRACT:
An object of the present invention is to provide a mass spectrometer that uses a time-of-flight mass spectrometer for performing mass spectrometry on the basis of the difference in flight time based on mass of desired ions, and that is suitable for improving the sensitivity and analysis precision of the mass spectrometer. A gate electrode is located at a stage before an acceleration region that is located before an emitter for emitting ions. This gate electrode is capable of applying the voltage that is set on a mass-number region basis, and is also capable of separating desired ions to be measured on the basis of the mass number by switching the gate electrode at high speed. Therefore, it is possible to improve the resolution.

REFERENCES:
patent: 5869829 (1999-02-01), Dresch
patent: 6700117 (2004-03-01), Franzen
patent: 6707033 (2004-03-01), Okumura et al.
patent: 6992283 (2006-01-01), Bateman et al.
patent: 7138624 (2006-11-01), Kato
patent: 7161141 (2007-01-01), Mimura et al.
patent: 7176452 (2007-02-01), Zuleta et al.
patent: 2002/0030159 (2002-03-01), Chernushevich et al.
patent: 2003/0222211 (2003-12-01), Okumura et al.
patent: 2005/0098719 (2005-05-01), Thomson
patent: 2005/0151073 (2005-07-01), Kato
patent: 2006/0016979 (2006-01-01), Yang et al.
patent: 2006/0163468 (2006-07-01), Wells et al.
patent: 2006/0208187 (2006-09-01), Mordehai et al.
patent: 2007/0051886 (2007-03-01), Rather
patent: 2007/0084998 (2007-04-01), Franzen et al.
patent: 200-348669 (2000-12-01), None
patent: 2005-108578 (2005-04-01), None

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