Method and device for analyzing effluents for the detection of peaks
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United States of America Patent
Stats
-
Oct 15, 1985
Grant Date -
N/A
app pub date -
Jan 23, 1984
filing date -
Jun 3, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The output signal of an effluent detector, disposed, for example, downstream of a liquid phase chromotography column, is digitalized and then compared to a LEVEL signal, fixed in relation to the base line of the detected signal, plus a deviation value (LO). A slope threshold is defined. As long as the slope of the detected signal is below the threshold, the pilot signal follows the detected signal. When the slope of the detected signal is higher than the threshold, a peak has occurred, and the value of the pilot signal locked, at least during a pre-established time. Thereafter the pilot signal resumes its evolution substantially parallel with the base line. This enables an outstanding detection of the useful peaks in the analysis of effluents.
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