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1. (WO2015048014) HYBRID ION MOBILITY SPECTROMETER

Pub. No.:    WO/2015/048014    International Application No.:    PCT/US2014/056970
Publication Date: Fri Apr 03 01:59:59 CEST 2015 International Filing Date: Wed Sep 24 01:59:59 CEST 2014
IPC: H01J 49/00
G01N 27/64
Applicants: INDIANA UNIVERSITY RESEARCH AND TECHNOLOGY CORPORATION
Inventors: CLEMMER, David E.
EWING, Michael A.
Title: HYBRID ION MOBILITY SPECTROMETER
Abstract:
A hybrid ion mobility spectrometer includes a single-pass drift tube having an ion inlet at one end and an ion outlet at an opposite end, a multiple-pass drift tube having an ion inlet and an ion outlet each coupled to the single pass drift tube between the ion inlet and the ion outlet thereof, and a set of ion gates each controllable between an open position to pass ions therethrough and a closed position to block ions from passing therethrough. The set of ion gates may be controlled to pass at least some ions traveling through the single-pass drift tube into the multiple-pass drift tube via the ion inlet of the multiple-pass drift tube and to pass at least some ions traveling through the multiple-pass drift tube into the single-pass drift tube via the ion outlet of the multiple-pass drift tube.