Millipore Spectroquant Multy Operating Manual page 116

Measuring range: 5 – 200 µg/l CN
Attention: In contrast to the instructions given in the package insert the sample volume as well as the reagent volume
must be doubled.
Check the pH of the Select method 1 9 1 .
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.
Shake the cell vigor- Add 2 level blue micro-
ously to dissolve the spoons of CN-4, close
solid substance. with the screw cap.
Insert the cell containing
the sample into the cell
compartment. Align the
mark on the cell with
that on the photometer.
Press Test .
Release 08/2014 - Spectroquant
Cyanide
Determination of free cyanide
24-mm cell
Fill approx. 10 ml of
distilled water into a
24-mm cell (do not add
any reagents!), close
with the screw cap.
(Blank cell)
Shake the cell vigor-
ously to dissolve the
solid substance.
®
Multy
Pipette 10 ml of the
sample into a 24-mm
cell.
Reaction time:
10 minutes
Press Enter to start
the countdown.
Quality assurance:
To check the measurement system (test reagents,meas-
urement device, and handling) ready-for-use cyanide stan-
®
dard solution Certipur , Cat.No. 119533, concentration
–
1000 mg/l CN , can be used after diluting accordingly.
The measurement results are expressed in µg/l.
109701
Test
Add 2 level green micro-
spoons of CN-3, close
with the screw cap.
Insert the blank cell into
the cell compartment.
Align the mark on the
cell with that on the pho-
tometer. Press Zero .