Millipore Spectroquant Multy Operating Manual page 183

Measuring range: 0.10 – 1.50 mg/l S
Check the pH of the Select method 4 5 0 .
sample, specified range:
pH 2 – 10.
If required, add dilute
sodium hydroxide
solution or sulfuric acid
drop by drop to adjust
the pH.
Add 5 drops of S-2, Add 5 drops of S-3,
close with the screw close with the screw
cap, and mix. cap, and mix.
Release 08/2014 - Spectroquant
Sulfide
16-mm cell
Fill approx. 10 ml of
distilled water into a
16-mm cell (do not add
any reagents!), close
with the screw cap.
(Blank cell)
Reaction time:
1 minute
Press Enter to start
the countdown.
®
Multy
Pipette 5.0 ml of the
sample into a 16-mm
cell.
Insert the blank cell into
the cell compartment.
Press Zero .
Quality assurance:
To check the measurement system (test reagents, meas-
urement device, and handling) a sulfide standard solution
must be prepared from sodium sulfide GR (see section
"Standard solutions").
114779
Test
Add 1 drop of S-1, close
with the screw cap, and
mix.
Insert the cell containing
the sample into the cell
compartment. Press
Test .