Check the pH of the
sample, specified range
:
pH 2 – 10.
If required, add dilute
sodium hydroxide
solution or sulfuric acid
drop by drop to adjust
the pH.
Pipette 5.0 ml of the
sample into a test tube.
Add 1 drop of S-1
and mix.
Sulfide
114779
Test
Transfer the solution into
a corresponding cell.
Select method with
AutoSelector.
Place the cell into the
cell compartment.
Important:
To measure in the 50-mm cell, the sample volume and
the volume of the reagents hav
e to be doubled for each.
Alternatively, the semi-microcell, Cat.No. 173502, can be
used.
Measuring 0.10 – 1.50 mg/l S 0.10 – 1.55 mg/l HS
10-mm cell
range: 0.050 – 0.750 mg/l S
0.052 – 0.774 mg/l HS 20-mm cell
0.020 – 0.500 mg/l S
0.021 – 0.516 mg/l HS 50-mm cell
Expression of results also possible in mmol/l.
Add 5 drops of S-2
and mix.
Add 5 drops of S-3
and mix.
Quality assurance:
To check the measurement system (test reagents,
measurement device, and handling) a sulfide standard
solution m
ust be prepared from sodium sulfide GR (see
section “Standard solutions”).
Release 06/2014 - Spectroquant
®
UV/VIS Spectrophotometer Pharo 300
Reaction time:
1 minute
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