Metrohm 746 VA Trace Analyzer - Manual (Page 296)

5.6.3 SUBSTANCES
746 VA Trace Analyzer / 747 VA Stand
5-145
Parameter Range; Default value / Meaning
Coefficients display only
Coefficients
Title for coefficients of the standard addition calculation.
Y.reg display only
Regression value calculated for sample
Display of the value Y.reg in A, W or s.
Y.reg is the evaluation quantity (current or area) for the sample
concentration ρ
eff,s
calculated from the standard addition curve (see
also Curve type ).
This value can be used in formulae as KY: ( = sub-
stance name) for further calculations.
Slope display only
Slope of standard addition curve
Display of the slope in AL/g, WL/g or sL/g.
With non-linear curves Slope represents the slope in the linear region
(see also Curve type ).
This value can be used in formulae as KS: ( = sub-
stance name) for further calculations.
Nonlin. display only
Non-linearity factor
Display of the non-linearity factor for a non-linear standard addition
curve in [Al/g]
4 , [WL/g] 4 or [sL/g] 4 (see also Curve type ).
This value can be used in formulae as KN: ( = sub-
stance name) for further calculations.
Mean dev. display only
Mean deviation of standard addition curve
Display of the calculated, mean deviation of the measured values
about the standard addition curve in A, W or s.
The size of Mean dev. can be used as a measure of the quality of a
standard addition.
This value can be used in formulae as KD: ( = sub-
stance name) for further calculations.
Additions display only
Additions
Title for the standard addition solutions. In conjunction with CASE
instructions, maximum 4 different standard addition solutions can be
defined.