Add 1 level blue micro-
spoon of Cl
2
-1, close
with the screw cap.
Pipette 5.0 ml of the
sample into a round cell.
Important:
Very high chlorine concentrations in the sample produce
yellow-colored solutions (measurement solution should be
red) and f
alse-low readings are yielded. In such cases the
sample must be diluted (plausibility check).
Quality assurance:
To check the measurement system (test reagents,
measurement device, and handling) a freshly prepared
standard solution can be used (see section
“Standard
solutions”).
100595
Cell Test
Measuring 0.03– 6.00 mg/l Cl
2
range: Expression of results also possible in mmol/l.
Chlorine
Determination of free chlorine
Place the cell into the
cell compartment. Align
the mark on the cell with
that on the photometer.
Reaction time:
1 minute
Shake the cell vigorous-
ly to dissolve the solid
substance.
Check the pH of the
sample, specified range
:
pH 4 – 8.
If required, add dilute
sodium hydroxide
solution or sulfuric acid
drop by drop to adjust
the pH.
Release 06/2014 - Spectroquant
®
UV/VIS Spectrophotometer Pharo 300
To Next Page
Loading...