Main applications for CVS
- Acid copper baths
- Tin-lead baths
- Tin baths
Special calibration techniques are required
for the quantification of the different
types of additives. Brighteners are determined
by means of the Linear
Approximation Technique (LAT) or
of the Modified Linear
Approximation Technique (MLAT). For
the suppressors the Dilution
Titration (DT) is used. Levelers
are usually determined using the Response
Curve (RC) technique.
The concentration of the additives can
be determined exactly with CVS or CPVS.
The effective concentration of the particular
additive in the bath sample is displayed
and printed directly in mL additive per
L bath solution. Dosing to the requested
concentration can be carried out very precisely.
This guarantees continuous and trouble-free
operation of the facility. The method obtained
general acceptance in plating industry
especially due to the accuracy of the analytical
results. Other methods, i.e. the classic
Hull Cell method, do not allow the determination
of concentrations but only the assessment
of the quality of the deposited metal layer.
A preinstalled method is loaded to run
the determination. The analysis can be started
after adaption of a few parameters. Ready-to-use
methods for the most important types of
baths of leading bath suppliers worked out
in our application laboratory are already
shipped with the instrument. Further applications
with the respective methods are made available
on the Metrohm website as Application
Bulletins and Application Notes.
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