Metrohm 894 Professional CVS semiautomated - Manual (Page 6)

Application Bulletin 401/1 e
Installation instruction for 894 Professional CVS semiautomated
4.1.2. Dosing commands
Such as:
•
Define the volume of solution that should be dosed
when this command is due.
Such as:
•
Define the volume of solution that should be dosed
when this command is due.
•
Assign the Dosing Unit that should be used to run this
command.
Such as:
•
On the tab «General/Hardware» assign the 894
Professional CVS instrument to which the 800 Dosino is
connected.
4.2. Evaluation
Settings regarding evaluation and documentation of the
determination are located in the «Evaluation» part of the
method. The templates already include all necessary
settings to determine brightener or suppressor concentration
in an acid copper bath. If modifications however should be
necessary, here is where important parameters are found:
4.2.1. Substances
In the «Substances» part settings for peak recognition and
baseline parameters are defined.
4.2.2. Standards
In the «Standards» part the concentration of the used
standard solution is defined.
4.2.3. Calibration
In the «Calibration» part the calibration method, such as DT
or MLAT, is defined as well as the regression type.
4.2.4. Results
In the «Results» part on the tab «Results» the substance is
selected for which the concentration should be calculated
and displayed.
On the tab «Database» the database is defined where
determinations should be stored. By default viva database
is used.
On the tab «Report» a report template for an automatic
printout can be defined. By default no printout is defined.
5. Operation
5.1. Suppressor determination
5.1.1. Manual operation
•
Dosing Unit «894/D1 50mL VMS» connected to Dosino
1 has to be prepared with VMS.
•
Dosing Unit «894/D4 2mL Std or sample» connected to
Dosino 4 has to be prepared with suppressor standard
solution if a calibration is recorded or with plating bath
sample for the determination.
5.1.2. Workplace
•
Select sample type S TANDARD to run a calibration in the
«Run» window of the «Workplace». For a determination
sample type S AMPLE has to be selected.
•
No «Sample amount» needs to be defined in the «Run»
window on the «Workplace», since addition volumes for
the standard and the sample are defined in the method
commands ADD STD and ADD SAMPLE DT.
5.1.3. Course of events
•
The execution of calibration or determination by dilution
titration is controlled by the 894 Professional CVS and
viva.
•
Dosino 1 automatically doses the VMS and Dosino 4 is
used for the automatic addition of suppressor standard
or plating bath sample.
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