Check the pH of the
sample, specified range
:
pH 5 – 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 reaction
cell, do not mix!
Reaction time:
10 minutes
Place the cell into the
cell compartment. Align
the mark on the cell with
that on the photometer.
102552
Cell Test
Surfactants (anionic)
Shake the cell vigor-
ously for 30 seconds.
Measuring 0.05 – 2.00 mg/l MBAS*
range: *Methylene-blue-active substances
Expression of results also possible in mmol/l.
Add 2 drops of T-1K,
close the cell with the
screw cap.
Quality assurance:
To check the measurement system (test reagents,
measurement device, and handling) a surf
actants
standard solution must be prepared from dodecane-1-
sulfonic acid sodium salt GR, Cat.No. 112146 (see section
“Standard solutions”).
Swirl the cell before
the measurement.
Release 06/2014 - Spectroquant
®
UV/VIS Spectrophotometer Pharo 300
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