Mass spectrometer and method of use

Details Mass spectrometer and method of use Mass spectrometer and method of use

2006-04-25

2006-04-25

Wells, Nikita (Department: 2881)

Radiant energy

Ionic separation or analysis

Ion beam pulsing means with detector synchronizing means

C250S288000

Reexamination Certificate

active

07034287

ABSTRACT:
Disclosed is a mass spectrometer combining an ion trap and a TOFMS non-coaxially, wherein ion trapping efficiency, mass resolution, and CID efficiency can be maximized. The present invention relates to the mass spectrometer combining the ion trap and the TOFMS non-coaxially, having a mass filter disposed between an ion source and an ion trap and a controller for controlling the gas pressure inside the ion trap and the gas pressure inside the mass filter independently, wherein the gas pressure inside the ion trap is set to the level higher than that inside the mass filter.

REFERENCES:
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patent: 5572022 (1996-11-01), Schwartz et al.
patent: 5652427 (1997-07-01), Whitehouse et al.
patent: 5696376 (1997-12-01), Doroshenko et al.
patent: 6627883 (2003-09-01), Wang et al.
patent: 6707033 (2004-03-01), Okumura et al.
patent: 2001-297730 (2000-04-01), None

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