Radiant energy – Ionic separation or analysis – Methods
Patent
1993-12-14
1995-11-07
Berman, Jack I.
Radiant energy
Ionic separation or analysis
Methods
250292, 250281, 250282, H01J 4926
Patent
active
054649757
ABSTRACT:
An apparatus and method for providing mass-selected particles. A mass filter adapted to receive a flux of particles at its entry emits a mass-selected subset of the received flux of particles at its exit, and an electrode configuration provides electric fields for deflecting at least some of the mass-selected subset of particles thus emitted across a substantially open spatial region through substantially 180 degrees of arc. The deflected particles can be collected, converted, fragmented, or detected. The apparatus and method are suitable for use with a multipole (e.g., quadrupole) mass filter, and the electrode configuration can easily be retrofitted to existing installed multipole mass spectrometers as well as adapted to newly manufactured designs.
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Kirchner Nicholas J.
Weber-Grafau Michael
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