Ion mobility spectrometers and methods for ion mobility spectrometry

US7518106B2 · kind B2 · utility

Assignee

• Battelle Energy Alliance, LLC · US

Inventors

• David A. Dahl · Idaho Falls, US
• Jill R. Scott · Idaho Falls, US
• Anthony D. Appelhans · Idaho Falls, US
• Timothy R. McJunkin · Idaho Falls, US
• John E. Olson · Idaho Falls, US

Key dates

• Filing date: Dec 14, 2006
• Grant date: Apr 14, 2009
• Expiry date: Dec 26, 2027

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N27/622
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

An ion mobility spectrometer may include an inner electrode and an outer electrode arranged so that at least a portion of the outer electrode surrounds at least a portion of the inner electrode and defines a drift space therebetween. The inner and outer electrodes are electrically insulated from one another so that a non-linear electric field is created in the drift space when an electric potential is placed on the inner and outer electrodes. An ion source operatively associated with the ion mobility spectrometer releases ions to the drift space defined between the inner and outer electrodes. A detector operatively associated with at least a portion of the outer electrode detects ions from the drift space.