101746
Test
Measuring 1.0 – 60.0 mg/l SO
3
10-mm cell
range: 0.8 – 48.0 mg/l SO
2
10-mm cell
Expression of results also possible in mmol/l.
Shake vigorously
to dissolve the solid
substance.
Add 5.0 ml of distilled
water with pipette and
mix.
Add 2.0 ml of the sample
with pipette and mix.
Place 1 level grey micro-
spoon of SO
3
-1 into a
dry test tube.
Add 3.0 ml of SO
3
-2 with
pipette.
Sulfite
Transfer the solution into
a cell.
Select method with
AutoSelector.
Place the cell into the
cell compartment.
Reaction time:
2 minutes
Quality assurance:
To check the measurement system (test reagents,
measurement device, and handling) a sulfite standard
solution m
ust be prepared from sodium sulfite GR,
Cat.No. 106657 (see section “Standard solutions”).
Check the pH of the
sample, specified range
:
pH 4– 9.
If required, add dilute
sodium hydroxide
solution or sulfuric acid
drop by drop to adjust
the pH.
Release 06/2014 - Spectroquant
®
UV/VIS Spectrophotometer Pharo 300
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