Ion guide for mass spectrometers

Details Ion guide for mass spectrometers Ion guide for mass spectrometers

2006-05-04

2009-02-24

Nguyen, Kiet T (Department: 2881)

Radiant energy

Ionic separation or analysis

Cyclically varying ion selecting field means

C250S3960ML

Reexamination Certificate

active

07495212

ABSTRACT:
The present invention relates generally to mass spectrometry and the analysis of chemical samples, and more particularly to ion guides for use therein. The invention described herein comprises an improved method and apparatus for transporting ions from a first pressure region in a mass spectrometer to a second pressure region therein. More specifically, the present invention provides a segmented ion funnel for more efficient use in mass spectrometry (particularly with ionization sources) to transport ions from the first pressure region to the second pressure region.

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patent: 6906319 (2005-06-01), Hoyes

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