Evaluation quantity calculation – Metrohm 797 VA Computrace User Manual

Page 153

5.8 Data processing and evaluation

797 VA Computrace – Software

141

mined by the baseline parameters set for this substance in the

BASELINE

window (see Baseline, section 5.2). The following possi-

bilities exist for baseline calculation:

Linear
Front end

Linear
Rear end

Linear
Whole Peak

Start

End

Exponential
Whole Peak

Start

End

Polynomial
Whole Peak

Start

End

Start

End

Horizontal
Whole Peak

As default, the start and end base points of the baselines are calcu-
lated automatically. They can be set to fixed voltage values if de-
sired. The baseline scope

Front end

Rear end

for linear baselines

should be selected for asymmetric or double peaks.

Evaluation quantity calculation

The peak evaluation quantity is identical for all peaks of a determi-
nation and must be set on the

Substances

tab of the

EDIT WOR-

KING METHOD PARAMETERS

window (see Working method speci-

fications window, section 5.2). With the aid of the calculated base-
lines, the set evaluation quantity

Height

Area

Derivative

Coulo-

metric

is determined for each substance peak and displayed as a

result.