Spectroquant Pharo 300 - Page 397

Check the pH of the
sample, specified range
:
pH 2– 10.
If required, add dilute
sodium hydroxide
solution or hydrochloric
acid drop by drop to
adjust the pH.
Pipette 0.50 ml of SO
4
-1
into a test tube.
Add 10 ml of the sample
with pipette and mix.
Sulfate
101812
Test
Transfer the solution into
a corresponding cell.
Select method with
AutoSelector.
Place the cell into the
cell compartment.
Add 1 level green micro-
spoon of SO
4
-2.
Release 06/2014 - Spectroquant
®
UV/VIS Spectrophotometer Pharo 300
Reaction time:
2 minutes, measure
immediately.
Measuring 2.5 – 50.0 mg/l SO
4
10-mm cell
range: 1.3 – 25.0 mg/l SO
4
20-mm cell
0.50 – 10.00 mg/l SO
4
50-mm cell
Expression of results also possible in mmol/l.
Filter turbid samples.
Quality assurance:
To check the measurement system (test reagents, meas-
urement device, and handling) ready-f
or-use sulfate
standard solution Certipur
®
, Cat.No. 119813, concen-
tration 1000 mg/l SO
4
2-
, can be used after diluting accord-
ingly.
Shake the test tube vig-
orously to dissolve the
solid substance.