SUM OF SIGNAL-TO-NOISE RATIOS |
Some peaks are clearly visible on one detector
(WL) while other peaks are visible on another detector; the
Sum of signal-to-noise ratios channel shows all of them. This
channel can be very useful for peak detection (but unfortunately
is not suitable for quantification). |
AVERAGE CHANNEL |
In the case of Diode Array detection (DAD) it’s helpful
to use the average response for quantification purpose, e.g.
in the range 240-260 nm. The main purpose of using the average
channel is to increase s/n (signal-to-noise) ratio. |
AVERAGE TRACE CHANNEL |
To further improve s/n ratio and linear dynamic range, one
can construct averaging regions with different averaging limits,
appropriate to the set of substances being analyzed. |
ANGLE |
Shows angle derivative of the multi-channel chromatogram.
The lower the angle, the higher the local purity of the peak
point. |
RESPONSE/TIME
|
This channel can be used for concentration-sensitive detectors
and may improve area quantification results. It can compensate
for analysis-to-analysis changes at flow and is especially useful
in capillary electrophoresis. Response/Time can be used for
single- or multi-channel detection. |
FROM CALIBRATION POINT |
This channel allows loading of calibration chromatogram channel
to visually compare current and calibration chromatograms. |