Release 08/2014 - Spectroquant
®
Multy
101746
Test
Measuring range: 1.0 – 60.0 mg/l SO
3
16-mm
cell
Shake both cells vigor-
ously to dissolve the
solid substance.
Add to each cell 5.0 ml of
distilled water with pipet-
te, close with the screw
cap, and mix.
Add to one cell 2.0 ml of
the sample with pipette,
close with the screw cap,
and mix.
Place 1 level grey
microspoon each of
SO
3
-1 into two dry
16-mm cells.
Add to each cell 3.0 ml of
SO
3
-2 with pipette, close
with the screw cap.
Sulfite
Add to the second cell
2.0 ml of distilled water
with pipette, close with
the screw cap, and mix.
(Blank cell)
Select method 4 6 1 .
Insert the cell containing
the sample into the cell
compartment. Press
Test .
Reaction time:
2 minutes
Press Enter to start
the countdown.
Quality assurance:
To check the measurement system (test reagents, meas-
urement device, and handling) a sulfite standard solution
must be prepared from sodium sulfite GR, Cat.No. 106657
(see section “Standard solutions”).
Insert the blank cell into
the cell compartment.
Press Zero .
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.
