Method for trace detection by solvent-assisted introduction of substances into an ion mobility spectrometer
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United States of America Patent
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Nov 7, 2000
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N/A
app pub date -
Feb 12, 1999
filing date -
Feb 12, 1998
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Abstract
The invention relates to a method and an ion mobility spectrometer (IMS) for the detection of contaminations by explosives, drugs, wood preservatives or the like. The substance traces collected on a carrier material, e.g. cellulose, are dissolved in a solvent for detection using an IMS and are vaporized together with this solvent from a sample dispenser in the reaction compartment of the IMS. In this way, the sample dispenser can be operated at a considerably lower temperature.
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