PRACTICAL ION MOBILITY SPECTROMETER APPARATUS AND METHODS FOR CHEMICAL AND/OR BIOLOGICAL DETECTION
First Claim
1. An ion mobility spectrometer comprising:
- a) at least one dielectric structure component;
b) at least one ion guide electrode that is affixed on the dielectric structure or structures;
c) an electric field gradient being generated using the ion guide electrode or electrodes; and
d) an ion gate that is placed at one end of a drift region.
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Abstract
The present invention relates to ion mobility spectrometers. In one embodiment, the ion mobility spectrometer of the present invention uses a simplified ion mobility spectrometer design having helical resistive material to form substantially constant electric fields that guide ion movements. The drift tube for ion mobility spectrometers described herein is constructed with a non-conductive structure. This configuration provides a robust ion mobility spectrometer that is simple to build. One feature of the present invention is that the drift tube design described herein enables the ion mobility spectrometer to be built with a lower weight, lower power consumption, lower manufacturing cost, and free of sealants.
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Citations
11 Claims
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1. An ion mobility spectrometer comprising:
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a) at least one dielectric structure component; b) at least one ion guide electrode that is affixed on the dielectric structure or structures; c) an electric field gradient being generated using the ion guide electrode or electrodes; and d) an ion gate that is placed at one end of a drift region. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification