Millipore Spectroquant Multy Operating Manual page 185

Measuring range: 1.0 – 60.0 mg/l SO
Check the pH of the Select method 4 6 1 .
sample, specified range:
pH 4 – 9.
If required, add dilute
sodium hydroxide
solution or sulfuric acid
drop by drop to adjust
the pH.
Add to each cell 5.0 ml of Add to one cell 2.0 ml of
distilled water with pipet- the sample with pipette,
te, close with the screw close with the screw cap,
cap, and mix. and mix.
Insert the cell containing
the sample into the cell
compartment. Press
Test .
Release 08/2014 - Spectroquant
Sulfite
16-mm cell
3
Place 1 level grey
microspoon each of
SO -1 into two dry
3
16-mm cells.
Add to the second cell
2.0 ml of distilled water
with pipette, close with
the screw cap, and mix.
(Blank cell)
®
Multy
Add to each cell 3.0 ml of
SO -2 with pipette, close
3
with the screw cap.
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").
101746
Test
Shake both cells vigor-
ously to dissolve the
solid substance.
Insert the blank cell into
the cell compartment.
Press Zero .