Metrohm 761 Compact IC - Manual (Page 120)

4 Operation
761 Compact IC
110
Setup
Tab Setup of Integration parameters window with integration parameters.
The two most important of these parameters for peak recognition are
Width and Slope .
If the signal-to-noise ratio of the chromatogram is high enough (e.g.
100:1 or higher), the integration algorithm is not too sensitive to
changes in integration parameters. On the contrary, if the baseline
noise is high, careful tuning of these parameters may be needed.
Number of peaks Number of peaks detected (read-only).
Channel Data acquisition channel for peak detection
(read-only)
Delay Time delay before starting peak detection (in
min).
Entry range: 0 … 1440 min
Width Peak width (at the baseline, in s).
This parameter is used for setting baseline start
and end points. If this value is too low, exces-
sive narrow peaks are detected from the base-
line noise. If it is too large, several adjacent
peaks or baseline drift can be integrated as a
single peak. For an optimal evaluation, it is rec-
ommended to enter the width of the narrowest
peak on the chromatogram (normally 2 … 10 s).
Entry range: 0.1 … 480 s