Millipore Spectroquant Multy Operating Manual page 113

Measuring range: 10 – 350 µg/l CN
Check the pH of the Select method 1 9 2 .
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- Reaction time:
ously to dissolve the 10 minutes
solid substance. Press Enter to start
the countdown.
Release 08/2014 - Spectroquant
Cyanide
Determination of free cyanide
16-mm cell
Fill approx. 10 ml of
distilled water into an
empty 16-mm cell (do
not add any reagents!),
close with the screw
cap.
(Blank cell)
Insert the blank cell into
the cell compartment.
Press Zero .
®
Multy
Pipette 5.0 ml of the
sample into a reaction
cell, close with the screw
cap, and dissolve the
solid substance.
Insert the cell containing
the sample into the cell
compartment. Align the
mark on the cell with
that on the photometer.
Press Test .
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.
102531
Cell Test
Add 1 level blue micro-
spoon of CN-1K, close
with the screw cap.