Ion mobility system comprising two IMS cells operated at...

Details Ion mobility system comprising two IMS cells operated at... Ion mobility system comprising two IMS cells operated at...

2004-06-08

2008-03-18

Berman, Jack I. (Department: 2881)

Radiant energy

Ionic separation or analysis

Ion beam pulsing means with detector synchronizing means

Reexamination Certificate

active

07345276

ABSTRACT:
An ion mobility spectrometer system includes two cells (1) and (2) driven by a drive unit (12) so that the cells operate at opposite polarities and are switched between different polarities either at regular intervals or in response to detection of a substance in one cell. Two reagents are supplied to both cells (1) and (2), one promoting detection of a substance in the positive mode and the other promoting detection of a substance in the negative mode so that there is no need to switch reagents when the polarity changes.

REFERENCES:
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patent: 6459079 (2002-10-01), Machlinski et al.
patent: 6765198 (2004-07-01), Jenkins et al.
patent: 2003/0006778 (2003-01-01), Aiki et al.
patent: 0 316 514 (1989-05-01), None
patent: 0 626 579 (1994-11-01), None
patent: WO 00/52432 (2000-09-01), None

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