Check the pH of the
sample, specified range
:
pH 4.5 – 8.0.
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
, close with the screw
cap,
and dissolve the
solid substance.
Add 1 level blue micro-
spoon of CN-1K, close
the cell with the screw
cap.
Measuring 0.010 – 0.500 mg/l CN
range: Expression of results also possible in mmol/l and cyanide free [CN(f)].
Cyanide
Determination of free cyanide
102531
Cell Test
Reaction time:
10 minutes
Place the cell into the
cell compartment. Align
the mark on the cell with
that on the photometer.
Quality assurance:
To check the measurement system (test reagents,
measurement device, and handling) ready-f
or-use
cyanide standard solution Certipur
®
, Cat.No. 119533,
concentration
1000 mg/l CN
–
, can be used after diluting
accordingly.
Shake the cell vigorous-
ly to dissolve the solid
substance.
Release 06/2014 - Spectroquant
®
UV/VIS Spectrophotometer Pharo 300
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