Baseline calculation – Metrohm 757 VA Computrace User Manual

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5 Determination mode

757 VA Computrace – Software

116

Baseline calculation

Recognized peaks are evaluated using approximated baselines.
The calculation of a baseline for a smoothed substance peak is
determined by the baseline parameters set for this substance in
the

BASELINE

window (see section 5.2). The following possibilities

exist for baseline calculation:

Linear
Front end

Linear
Rear end

Linear
Whole curve

Start

End

Polynomial
Whole curve

Start

End

Exponential
Whole curve

Start

End

As default, the start and end base points of the baselines are cal-
culated automatically. They can be set to fixed voltage values if
desired. The baseline scope

Front end

Rear end

for linear base-

lines should be selected for asymmetric or double peaks.