Mass spectrometer

Details Mass spectrometer Mass spectrometer

2008-03-25

2008-03-25

Berman, Jack (Department: 2881)

Radiant energy

Ionic separation or analysis

Cyclically varying ion selecting field means

C250S281000, C250S282000, C250S283000, C250S288000, C250S291000, C250S290000, C250S299000

Reexamination Certificate

active

11146157

ABSTRACT:
A mass spectrometer includes: an ion source for ionizing a specimen to generate ions, an ion transport portion for transporting the ions, a linear ion trap portion for accumulating the transported ions by a potential formed axially, and a control portion of ejecting the ions within a second m/z range different from a first m/z range, from the linear ion trap portion, and substantially at the same timing as the timing of accumulating the ions within the first m/z range from the transport portion into the linear ion trap portion. The ion transportation portion having a mass selection means for selecting the ions in the first m/z range.

REFERENCES:
patent: 5179278 (1993-01-01), Douglas
patent: 5420425 (1995-05-01), Bier et al.
patent: 5783824 (1998-07-01), Baba et al.
patent: 6177668 (2001-01-01), Hager
patent: 6504148 (2003-01-01), Hager
patent: 6627883 (2003-09-01), Wang et al.
patent: 2003/0071206 (2003-04-01), Belov et al.

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