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Metrohm 797 VA Computrace User Manual

Page 184

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6 Electroplating Bath VA

797 VA Computrace – Software

172

and CPVS - Cyclic Pulse Voltammetric Stripping
section 3.2)

Substances tab with Calibration

technique “DT Suppressors with

calibration curve”

The

Substances

tab of the

EDIT WORKING METHOD PARAMETERS

window contains parameters for the definition and recognition of
substances, for the definition of standard solutions, for peak eva-
luation and results calculation. The parameters displayed depend
on the

Calibration

technique selected in the

WORKING METHOD

SPECIFICATIONS

window. With “DT Suppressors with calibration

curve” following parameters have to be defined:

Substance [ 24 characters ; ]

Substance name. For the assignment of a found
peak to this substance the checkbox on the left
side of the substance name must be checked.

With CVS:

Peak pos. +/- (V) [ -5...+5 V ; 0 V ]

Position of the peak voltage for the substance and
tolerance for this verification voltage.

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.

Plating bath solution

Definition of plating bath solutions for standard
addition. The concentration of the plating bath is
not known (this is the concentration to be deter-
mined).

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. Nor-
mally, only one plating bath solution is needed
(the one which is analyzed).

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).

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