Add with microspoon
1 glass bead.
Fill watersample into a
reaction cell to over-
flowing and make sure,
that no air bubbles are
present.
Place the filled cell in a
test-tube rack.
Add 5 drops of O
2
-1K.
Add 10 drops of O
2
-3K,
close the cell with the
screw cap, mix, and
clean from outside.
Measuring 0.5 –12.0 mg/l O
2
range: Expression of results also possible in mmol/l.
Oxygen
114694
Cell Test
Place the cell into the
cell compartment. Align
the mark on the cell with
that on the photometer.
Add 5 drops of O
2
-2K,
close the cell with the
screw cap, and shake for
10 seconds.
Reaction time:
1 minute
Check the pH of the
sample, specified range
:
pH 6 – 8.
If required, add dilute
sodium hydroxide
solution or nitric acid
drop by drop to adjust
the pH.
Release 06/2014 - Spectroquant
®
UV/VIS Spectrophotometer Pharo 300
Quality assurance:
To check the measurement system (test reagents, meas-
urement device, and handling) a o
xygen standard
solution
must be prepared
(application see the website).
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