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Glossary – Metrohm viva 1.0 Manual User Manual

Page 877

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Glossary

viva 1.0

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865

Glossary

Analysis volume

If a sample is diluted, then that part of the dilution volume (see Glossary,
page 868)
that is added to the measuring vessel is referred to as analysis
volume (see Glossary, page 872).

Baseline

Auxiliary line for the calculation of the evaluation quantities (peak area,
peak height) from the beginning of the steep increase of the peak to the
end of the steep decrease of the peak. The peak area and the peak height
are calculated between the baseline and the curve.

Brightener

In electroplating bath analysis, "brightener" refers to an organic additive
that increases the deposition rate of copper. Because even small quantities
of brightener can significantly increase metal deposition, this characteristic
effect can be used to determine the brightener concentration in an elec-
troplating bath.

CVS (Cyclic Voltammetric Stripping)

In the CVS (Cyclic Voltammetric Stripping) measuring mode, the potential
of a rotating disk electrode (RDE, e.g. Pt) is changed once or several times
at a constant potential sweep rate from the start potential to vertex
potential 1, from there to vertex potential 2 and then back again to the
start potential. The current I is measured as a function of the potential U
in this process. The curves recorded in the measuring cycles are saved and
can be evaluated (see Chapter 5.5.2.3.2.1, page 395).