Metrohm viva 1.0 (process analysis) - Manual (Page 650)

5.6 Evaluation subwindow
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viva 1.0 (for Process analysis)
5.6.7.7.18 Relative standard deviation of the substance concentration in the
measuring vessel
Variable name RS.’Command name’.’Substance name’.CONCM.RSD
Description Relative standard deviation of the substance concentration in the measur-
ing vessel.
Decimal places 0…1…6
Unit %
Remark Only for Calibration method = MLAT.
5.6.7.7.19 Substance quantity
Variable name RS.’Command name’.’Substance name’.AMOUNT
Description Mass, amount or volume of a substance that has entered the measuring
vessel via the sample amount.
Decimal places 0 ... 2 ... 6
Unit %
Remark Only for Calibration method = MLAT.
Calculation
Variable Description
CONCM Substance concentration in the measuring vessel.
VTOT Total volume in the measuring vessel at the moment of
the sample measurement.
5.6.7.7.20 Suppressor concentration in the sample
Variable name RS.’Command name’.’Substance name’.CONC
Description Concentration of the suppressor in the sample.
Unit Arises from the unit of the suppressor standard solution used #g/L,
#mol/L or #l/L
Calculation
The following condition applies for the evaluation ratio for the DT calibra-
tion method: