Mass spectrometer

Details Mass spectrometer Mass spectrometer

2008-01-31

2009-08-04

Berman, Jack I (Department: 2881)

Radiant energy

Ionic separation or analysis

Methods

C250S281000, C250S283000, C250S288000, C250S290000, C250S291000, C250S292000, C250S299000

Reexamination Certificate

active

07569814

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:
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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: 7348554 (2008-03-01), Hashimoto et al.
patent: 2003/0071206 (2003-04-01), Belov et al.
Ming Gu et al., “The Precursor Scan. A new Type of Experiment in Neutralization-Reionization Mass Spectrometry”, Organic Mass Spectrometry, vol. 28, (1993) pp. 1135-1143.

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