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5. Select or clear the columns as required in the Column Settings dialog. Refer to
Select Columns for the Results
.
Integration Algorithm Parameters
MQ4 Integration Algorithm Parameters
The following parameters are used to identify and report the peak of interest. Refer to
for a complete list of available parameters.
Noise Percentage
This parameter is used to estimate the noise level in the chromatograms. The specified percentage of the data
points with the smallest intensity are assumed to be noise.
Typical values range from 20% to 60%. If small peaks in the presence of larger peaks are not being found, then
the noise percentage should be lowered.
is an example of a small peak in the presence of an extremely
large peak. This peak is not found when the noise percentage is set to 90% but is found when the noise percentage
is set to 40%.
Figure 6-58 Peak of Interest
In
, the left graph shows the noise percentage set to 40%. The right graph is set to 90%.
System User Guide
SCIEX X500 QTOF System
RUO-IDV-05-2334-E
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Operating Instructions—Software