Multi-channel high-field asymmetric waveform ion mobility...

Details Multi-channel high-field asymmetric waveform ion mobility... Multi-channel high-field asymmetric waveform ion mobility...

2008-07-08

2008-07-08

Berman, Jack I. (Department: 2881)

Radiant energy

Ionic separation or analysis

Ion beam pulsing means with detector synchronizing means

C250S281000, C250S282000, C250S285000, C250S288000, C250S292000

Reexamination Certificate

active

11442250

ABSTRACT:
A multi-channel high field asymmetric waveform ion mobility spectrometer (FAIMS) is provided. The apparatus provides for substantially simultaneous FAIMS analysis of plurality of ions from a single sample. The apparatus has a analyzer region comprising a hollow electrode, a plurality of plate electrodes positioned parallel to and distanced from the hollow electrode, a contact for applying an high voltage asymmetric waveform to the hollow electrode and a plurality of contacts for applying a compensation voltage to the plurality of plate electrodes. A method for substantially simultaneous FAIMS analysis of plurality of ions from a single sample is also provided.

REFERENCES:
patent: 6806466 (2004-10-01), Guevremont et al.
patent: 6815668 (2004-11-01), Miller et al.
patent: 6825461 (2004-11-01), Guevremont et al.
patent: 2004/0094704 (2004-05-01), Miller et al.
Buryakov, I.A., et al., “A new method of separation of multi-atomic ions by mobility at atmospheric pressure using a high-frequency amplitude-asymmetric strong electric field”, Int. Journal of Mass Spectrometry & Ion Processes, vol. 128 (May 18, 1993) pp. 143-148.
Guevremont, Roger, et al., “Atmospheric pressure ion focusing in a high-field asymmetric waveform ion mobility spectrometer”, Review of Scientific Instruments, vol. 70, No. 2 (Oct. 27, 1998) pp. 1370-1383.

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