FAIMS electrodes with lateral ion focusing

Details FAIMS electrodes with lateral ion focusing FAIMS electrodes with lateral ion focusing

2006-06-13

2008-12-23

Souw, Bernard E (Department: 2881)

Radiant energy

Ionic separation or analysis

Cyclically varying ion selecting field means

C250S281000, C250S282000, C250S293000

Reexamination Certificate

active

07468511

ABSTRACT:
A FAIMS cell including one of side-to-side cylindrical geometry electrodes and stacked-plate electrodes is adapted with a medial surface feature for focusing ions along a lateral direction within an ion separation region of the FAIMS cell. The medial surface feature is provided as one of a recessed channel within an electrode surface and a protruding ridge extending from an electrode surface. The medial surface feature is aligned with a defined aggregate direction of ion travel within the ion separation region for focusing ions along the lateral direction in opposition to the tendency of ions to spread out as a result of space charge repulsion, ion-ion repulsive forces, diffusion and gas flows. The electrical field and fluid dynamic effects produced by the medial surface feature beneficially affect ion transmission efficiency through the FAIMS cell.

REFERENCES:
patent: 6753533 (2004-06-01), Mita
patent: 6770875 (2004-08-01), Guevremont et al.
patent: 7034289 (2006-04-01), Guevremont et al.
patent: 7045778 (2006-05-01), Guevremont et al.
patent: 7112788 (2006-09-01), Guevremont et al.
patent: 7223967 (2007-05-01), Guevremont et al.
patent: 7274014 (2007-09-01), Guevremont et al.
patent: 7351960 (2008-04-01), Belford
patent: 7417225 (2008-08-01), Guevremont et al.
patent: 2003/0150984 (2003-08-01), Guevremont et al.
patent: 2005/0167587 (2005-08-01), Guevremont et al.
patent: 2005/0178964 (2005-08-01), Guevremont et al.
patent: 2006/0060773 (2006-03-01), Guevremont et al.
patent: 2006/0151694 (2006-07-01), Guevremont et al.
patent: 2006/0237643 (2006-10-01), Guevremont et al.
patent: 2006/0255264 (2006-11-01), Belford
patent: 2008/0067366 (2008-03-01), Belford
patent: WO 01/69216 (2001-09-01), None
patent: WO 01/69217 (2001-09-01), None
patent: WO 03/067236 (2003-08-01), None

Affiliated with

Also associated with

Rating

FAIMS electrodes with lateral ion focusing does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with FAIMS electrodes with lateral ion focusing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and FAIMS electrodes with lateral ion focusing will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4027724