Procedure and apparatus for programmed thermal desorption
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United States of America Patent
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Mar 28, 1995
Grant Date -
N/A
app pub date -
Jul 12, 1993
filing date -
Jul 10, 1992
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Method and apparatus for thermal desorption wherein a carrier liquid is circulated around a desorption chamber when a sample to be desorbed in heated, whereby the desorbed substance is dissolved into the carrier liquid for transport to a region where the substance is analyzed. The carrier liquid circulation is performed at high pressure sufficient to maintain the carrier liquid in the liquid phase during heating of the sample.
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