Method and Apparatus for Reduced Membrane Desorption Time in Ion Molecular Spectrometry
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United States of America Patent
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Issued Date -
May 2, 2013
app pub date -
Nov 2, 2011
filing date -
Nov 2, 2011
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Abandoned
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Abstract
An ion mobility spectrometer including an ion identifying unit, a detector in flow communication with the identifying unit, a gas inlet configured to provide gas carrying a sample of interest, a membrane substantially covering the first opening of the detector inlet, the membrane configured to capture the sample of interest on an exterior surface of the membrane, a heating device coupled to the membrane, the heating device configured to increase a temperature of the membrane to a temperature threshold level once the sample of interest is captured enabling molecules in the captured sample of interest to pass through the membrane and into the detector inlet, and a radiant heat source configured to apply radiant heat to the membrane to increase the temperature of the membrane to the temperature threshold level.
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