On-line gas chromatographic analysis of airborne particles
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United States of America Patent
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Jan 3, 2012
Grant Date -
Nov 3, 2005
app pub date -
Dec 10, 2004
filing date -
Dec 10, 2003
priority date (Note) -
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Abstract
A method and apparatus for the in-situ, chemical analysis of an aerosol. The method may include the steps of: collecting an aerosol; thermally desorbing the aerosol into a carrier gas to provide desorbed aerosol material; transporting the desorbed aerosol material onto the head of a gas chromatography column; analyzing the aerosol material using a gas chromatograph, and quantizing the aerosol material as it evolves from the gas chromatography column. The apparatus includes a collection and thermal desorption cell, a gas chromatograph including a gas chromatography column, heated transport lines coupling the cell and the column; and a quantization detector for aerosol material evolving from the gas chromatography column.
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