PRACTICAL ION MOBILITY SPECTROMETER APPARATUS AND METHODS FOR CHEMICAL AND/OR BIOLOGICAL DETECTION
First Claim
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1. An ion mobility spectrometer (IMS) apparatus comprising:
- an inlet accepting samples;
an ionization source ionizing some of the samples;
a drift tube separating ions based ion mobility;
an ion detector detecting ions; and
a heat pump for rapidly heating and/or cooling the apparatus.
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Abstract
This invention describes an ion mobility spectrometer and operational methods for chemical analysis. The ion mobility spectrometer allows for continuous operation and rapid temperature control to reach designed operational conditions, as well as analysis under a temperature gradient.
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Citations
14 Claims
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1. An ion mobility spectrometer (IMS) apparatus comprising:
an inlet accepting samples;
an ionization source ionizing some of the samples;
a drift tube separating ions based ion mobility;
an ion detector detecting ions; and
a heat pump for rapidly heating and/or cooling the apparatus.- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for operating a low thermal mass IMS comprising:
- rapidly adjusting an IMS temperature to the first starting operating temperature;
ramping the temperature to the ending operating temperature at a designed rate using a heat pump. - View Dependent Claims (11, 12, 13, 14)
- rapidly adjusting an IMS temperature to the first starting operating temperature;
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