Ion mobility spectrometer

Details Ion mobility spectrometer Ion mobility spectrometer

2008-12-12

2010-12-14

Souw, Bernard E (Department: 2881)

Radiant energy

Ionic separation or analysis

Methods

C250S281000, C250S288000, C250S299000

Reexamination Certificate

active

07851743

ABSTRACT:
The present invention achieves an ion mobility spectrometer which is small-sized but has higher selectivity. In an interior of a drift tube, air flow moving from a detector side to an ion source side is generated, and there are arranged, in order from an upstream side of the air flow to a downstream side thereof, a first region where a flow rate increases in a flow direction, a second region where the flow rate is constant, and a third region where the flow rate decreases. Light irradiation mechanisms for dissociating an ion are provided in the second region.

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Stormy L. Koeniger et al., “An IMS-IMS Analogue of MS-MS”, Anal. Chem., No. 78, No. 12, Jun. 15, 2006, pp. 4161-4174.

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