H - Electricity – 01 – J
Patent
H - Electricity
01
J
H01J 49/26 (2006.01) H01J 49/42 (2006.01)
Patent
CA 2447057
A mass spectrometer is disclosed comprising a mass filter 1 for separating ions according to their mass to charge ratio. The mass filter 1 comprises a plurality of electrodes 3 wherein ions are radially confined within the mass filter 1 by the application of AC or RF voltages to the electrodes 3. One or more transient DC voltages or one or more transient DC voltage waveforms are progressively applied to the electrodes 3 so that ions having a certain mass to charge ratio are separated from other ions having different mass to charge ratios which remain radially confined within the mass filter 1.
Bateman Robert Harold
Giles Kevin
Hoyes John Brian
Pringle Steve
Wildgoose Jason Lee
Micromass Uk Limited
Ridout & Maybee Llp
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