Dual mode ion mobility spectrometer and method for ion mobility spectrometry

US7259369B2 · kind B2 · utility

Assignee

• Battelle Energy Alliance, LLC · US

Inventors

• Jill R. Scott · Idaho Falls, US
• David A. Dahl · Idaho Falls, US
• Carla J. Miller · Idaho Falls, US
• Paul L. Tremblay · Idaho Falls, US
• Timothy R. McJunkin · Idaho Falls, US

Key dates

• Filing date: Aug 22, 2005
• Grant date: Aug 21, 2007
• Expiry date: Feb 6, 2026

Classification

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

Abstract

Ion mobility spectrometer apparatus may include an ion interface that is operable to hold positive and negative ions and to simultaneously release positive and negative ions through respective positive and negative ion ports. A first drift chamber is operatively associated with the positive ion port of the ion interface and encloses an electric field therein. A first ion detector operatively associated with the first drift chamber detects positive ions from the first drift chamber. A second drift chamber is operatively associated with the negative ion port of the ion interface and encloses an electric field therein. A second ion detector operatively associated with the second drift chamber detects negative ions from said second drift chamber.