Metrohm viva 1.0 Manual - Manual (Page 614)

5.6 Evaluation subwindow
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viva 1.0
Remarks The coefficient k(0) does not depend on the concentration unit of the
standard solution. That is why dependencies exist only with respect to the
measured quantity and the evaluation quantity.
The y axis of the calibration curve is dimensionless because of the fact
that it is standardized in the Dilution Titration (DT) calibration method.
The effective addition volume VEFF is always applied to the x axis. This
means that the unit for the coefficient k(0) = dimensionless.
5.6.7.4.2 Coefficient k(1)
Variable
name RS.’Command name’.’Substance name’.CALC1
Description First-order coefficient of the calibration curve or standard addition curve.
Decimal pla-
ces 0…3…6
Unit Concentration unit = #g/L #A L g ⁻¹ (for Evaluation quantity = Height)
#C L g ⁻¹ (for Evaluation quantity = Area)
Concentration unit = #L/L #A (for Evaluation quantity = Height)
#C (for Evaluation quantity = Area)
Concentration unit = #mol/L #A L mol ⁻¹ (for Evaluation quantity =
Height)
#C L mol ⁻¹ (for Evaluation quantity = Area)
Remarks The y axis of the calibration curve is dimensionless because of the fact that it is standardized in the
Dilution Titration (DT) calibration method. The effective addition volume VEFF is always applied to
the x axis. This means that the unit for the coefficient k(1) = L
⁻¹.
5.6.7.4.3 Coefficient k(2)
Variable name RS.’Command name’.’Substance name’.CALC2
Description Second-order coefficient of the calibration curve or standard addition curve.
Decimal places 0…3…6