Metrohm 797 VA Computrace User Manual
Page 199

6.2 Calibration techniques with CVS and CPVS
797 VA Computrace – Software
187
With CPVS:
Step potential [ read only ; step 1: 0.2 V ]
Displays the potential values, which are defined in
the window
edit stripping steps
.
Bsln
.
Parameters for baseline evaluation (details see
Baseline
, section 5.2). Click the
button to open
the
BASELINE
window for the selected substance.
Suppressor standard solution
Definition of addition solutions for standard addi-
tion.
No. [ 0...8 ; 0 ]
Number of addition solution used for manual or
automatic addition. For automatic additions, this
number is also the Dosing Device number.
Achtung: Dosino 1..3 refer to Dosinos connected
to the 797 VA Computrace. Dosino 4...7 refer to
Dosinos connected to the 846 Dosing Interface (to
MSB 1...4).
Conc. [ > 0 ; 0 ]
Value for concentration of addition solution.
Unit [ fL/L...mL/L ; mL/L ]
Unit for concentration of addition solution.
Volume (mL) [ > 0.01 mL / var ; 0 mL ]
Addition volume. For entering variable addition
volumes, click the
button to open the
EDIT
VARIED ADDITION
window for the selected sub-
stance (details see
Variable addition
, section 5.2).
In this case,
var
is entered into the field instead of
a fixed value. This field only appears once for solu-
tions with the same number (mixed standards)
and it is not displayed if
0
is entered as solution
number.
Regression technique [ see below ; Linear Regression ]
Selection of regression technique:
Linear
Regression
The regression is calculated with a straight line.
Nonlinear
Regression
The regression is calculated with a nonlinear
curve.
Linear
Interpolation
The regression is calculated with a linear interpola-
tion through 2 points.
Quadratic
Regression
The regression is calculated with a nonlinear
curve.