Metrohm 797 VA Computrace - Manual (Page 176)

6 Electroplating Bath VA
797 VA Computrace – Software
164
Reverse sweep [ on, off ; off ]
Enable peak evaluation of the reverse sweep of
cyclic sweeps (not available with CPVS).
MLAT Standard addition for brighteners
M odified L inear A pproximation T echnique (“MLAT Standard addi-
tion for brighteners”) is a Calibration technique for CVS and CPVS.
It is the standard technique to analyze Brighteners in electroplating
baths. If the difference between Q(“Intercept solution” + “Bath so-
lution”) and Q(only “Intercept solution”) is too small to use
“MLAT”, try “LAT Standard addition for brighteners”.
Determination tab with Calibration technique “MLAT”
The Determination tab of the EDIT WORKING METHOD PARAME-
TERS window contains general specifications for performing the
determination. The parameters displayed depend on the selected
Calibration technique and measurement Technique . With “MLAT
Standard addition for brighteners” following parameters have to be
defined:
Sample identifier [ 32 characters ; "sample" ]
Identification for sample. The Sample identifier is
used for the file name.
Volume production bath (mL) [> 0 mL ; 10 mL]
The volume of sample bath solution added (see
Production bath solution, section 6.4).
Cell volume (mL) [ > 0 mL ; 20 mL ] [ read only ]
Total volume of solution (“Intercept solution” +
“Production bath solution”) in the measuring ves-
sel after addition of “bath solution”. The sample
concentrations
Conc
. calculated refers to this cell
volume.
Volume intercept solution (mL) [> 0 mL ; 10 mL]
The volume of “Intercept solution” added.
Initial electrode conditioning ( see Initial electrode conditioning,
section 6.3 )
Check the checkbox to use conditioning.
No. of conditioning measurements [ 1...100 ; 1 ]
Number of replications of conditioning measure-
ments. The “total number of conditioning meas-
urements” is the
No. of conditioning measure-
ments multiplied with the number of Save last ..
sweeps ( Voltammetric tab). “Total number of con-
ditioning measurements” must not exceed 100.
or
Auto Std.dev (%)[ >0.1 ; 1 ]
Define until which „Std.dev.“ the conditioning is
continued. The „Std.dev.“ is calculated from all