Instruction Manual

5.2 Working method specifications
797 VA Computrace – Software
93
No. of cells [ 0...28 ; 2 ]
Number of solutions to be measured if Batch with
solution exchange
is selected for Technique.
Calibration curve [ path + file name ; ]
Selection of the determination file that contains
the desired calibration curves. Accessible if Sample
with calibration curve
is selected for Calibration.
Also accessible with Calibration technique “DT
Suppressors with calibration curve” in the CVS and
CPVS mode.
Note: To make sure that (for automated opera-
tions with a sample processor) always the latest
calibration file is taken for the calculation; the file
name of the calibration file chosen for parameter
Calibration curve for the determination of the
sample (with Calibration technique "Sample with
calibration curve"), must match with the Sample
identifier
(see above) defined for recording the
calibration curve (with Calibration technique "Re-
cord calibration curve").
Example for Calibration curve:
C:\Program files\Metrohm\797 VA Computrace\-
Data\CalibrationLead.dth
No. of replications [ 0...10 ; 2 ]
Number of replications (= total number of measu-
rements) for each variation (sample, standard ad-
dition, calibration level). For cyclic modes (CV,
CVS, CPVS) the “total number of measurements”
is the No. of replications multiplied with the num-
ber of Save last .. sweeps (Voltammetric tab). “To-
tal number of measurements” must not exceed
10.
Voltammetric
The Voltammetric tab of the EDIT WORKING METHOD PARAME-
TERS
window contains parameters for preparation procedures and
VA measurement modes. The parameters displayed depend on the
measurement mode selected in the
WORKING METHOD SPECIFICA-
TIONS
window.