Bi-directional system for mass spectrometry

Details Bi-directional system for mass spectrometry Bi-directional system for mass spectrometry

2006-02-28

2010-10-19

Berman, Jack I (Department: 2881)

Radiant energy

Ionic separation or analysis

Cyclically varying ion selecting field means

C250S281000, C250S282000, C250S285000

Reexamination Certificate

active

07816647

ABSTRACT:
The present invention relates to a system and method for mass spectrometry (100) that allows for bi-directional introduction of collections of charged particles into the magnetic field of a mass spectrometer. More particularly, the present invention includes a system for mass spectrometry (100) (e.g., an FTMS mass spectrometer) with a cylindrical magnet (101) configured to receive and measure the cyclotron frequencies (104) of charged particles that are introduced (102, 103) into the cylindrical magnet (101) from either of the two axial ends thereof. Methods of the invention relate to performing mass spectrometry analysis on collections of charged particles that are introduced (102, 103), serially, simultaneously or both, into a cylindrical magnet (101) from opposing axial ends thereof. The present invention exhibits significantly increased magnet throughput relative to currently available devices, by allowing flow in the opposite direction to a second detector, e.g., during ion processing time of a first detector.

REFERENCES:
patent: 5455418 (1995-10-01), Hogan
patent: 2003/0183760 (2003-10-01), Tsybin et al.
patent: 2005/0092919 (2005-05-01), Bellec et al.
patent: 2006/0169892 (2006-08-01), Baba et al.
patent: 2006/0232369 (2006-10-01), Gorshkov

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