Ion mobility spectrometers

Details Ion mobility spectrometers Ion mobility spectrometers

2011-08-16

2011-08-16

Kim, Robert (Department: 2881)

Radiant energy

Ionic separation or analysis

Cyclically varying ion selecting field means

C250S281000, C250S282000, C250S290000

Reexamination Certificate

active

07999224

ABSTRACT:
An ion mobility spectrometer has a reaction region separated from a drift region by an electrostatic gate. A doping circuit supplies a dopant to the reaction region but the drift region is undoped. Two high field ion modifiers are located one after the other in the drift region. One ion modifier can be turned on to remove dopant adducts from the admitted ions, or both ion modifiers can be turned on so that the ions are also fragmented. In this way, several different responses can be produced to provide additional information about the nature of the analyte substance and distinguish it from interferents.

REFERENCES:
patent: 7820962 (2010-10-01), Wynn et al.
patent: 2005/0133710 (2005-06-01), Losch et al.
patent: 2009/0174412 (2009-07-01), Atkinson et al.
patent: 2010/0230588 (2010-09-01), Atkinson et al.
patent: WO 0079261 (2000-12-01), None
patent: WO 03104763 (2003-12-01), None
patent: WO 2006114580 (2006-11-01), None

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