Continuous sampling ion mobility spectrometers and methods therefor

Patent · Tue Apr 14 00:00:00 EDT 2009

OSTI ID:986581

Dahl, David A ^[1]; Scott, Jill R ^[1]; Appelhans, Anthony D ^[1]; McJunkin, Timothy R ^[1]; Olson, John E ^[2]

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1. Idaho Falls, ID
2. Rigby, ID

An ion mobility spectrometer may include a flow channel having an inlet end and an outlet end. A deflection electrode is positioned within the flow channel so that a non-linear electric field is created between at least a portion of the flow channel and at least a portion of the deflection electrode when an electrostatic potential is placed across the deflection electrode and the flow channel. The ion mobility spectrometer also includes means for producing ions at a position upstream from the leading edge of the deflection electrode, so that ions produced thereby are deflected by the deflection electrode into the non-linear electric field. A detector positioned within the flow channel for detects ions from the non-linear electric field.

• Research Organization: Idaho National Laboratory (INL), Idaho Falls, ID (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC07-05ID14517
• Assignee: Battelle Energy Alliance, LLC (Idaho Falls, ID)
• Patent Number(s): 7,518,105
• Application Number: 11/610,609
• OSTI ID: 986581
• Country of Publication: United States
• Language: English

Related Subjects

47 OTHER INSTRUMENTATION
DESIGN
ELECTRIC FIELDS
ELECTRODES
ELECTROSTATICS
FLUID FLOW
ION MOBILITY
OPERATION
SAMPLE HOLDERS
SAMPLING
SPECTROMETERS