Chromium in electroplating baths
Inherent color
Measuring 20 – 400 g/l CrO
3
10-mm cell
range: 10 – 200 g/l CrO
3
20-mm cell
4.0 – 80.0 g/l CrO
3
50-mm cell
Pipette 5.0 ml of the
1:500 dilute sample
into an empty round
cell (Empty cells, Cat.
No. 114724).
Add 5.0 ml of sulfuric
acid 40 %, close the cell
with the screw cap, and
mix.
Pipette 5.0 ml of the
sample into a 100-ml
volumetric flask,
fill to the mark with
distilled water and
mix thoroughly.
Pipette 4.0 ml of the
dilute sample into a
100-ml volumetric flask,
fill to the mark with
distilled water and mix
thoroughly.
Place the cell into the
cell compartment. Select
method no. 20.
Transfer the solution into
a corresponding rectan-
gular cell.
Release 06/2014 - Spectroquant
®
UV/VIS Spectrophotometer Pharo 300
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