Millipore Spectroquant Multy Operating Manual page 111

Measuring range: 0.05– 8.00 mg/l Cu
Check the pH of the Select method 1 8 0 .
sample, specified range:
pH 4 – 10.
If required, add dilute
sodium hydroxide
solution or sulfuric acid
drop by drop to adjust
the pH.
Reaction time: Insert the blank cell into
5 minutes the cell compartment.
Press Enter to start Press Zero .
the countdown.
Important:
Very high copper concentrations in the sample produce
turquoise-colored solutions (measurement solution should
be blue) and false-low readings are yielded.
In such cases the sample must be diluted (plausibility
check).
For the determination of total copper a pretreatment
with Crack Set 10C, Cat.No. 114688, or Crack Set 10,
Cat.No. 114687 and thermoreactor is necessary.
Release 08/2014 - Spectroquant
Copper
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 cell containing
the sample into the cell
compartment. Align the
mark on the cell with
that on the photometer.
Press Test .
®
Multy
Pipette 5.0 ml of the
sample into a reaction
cell, close with the screw
cap, and mix.
Quality assurance:
To check the measurement system (test reagents, meas-
urement device, and handling) we recommended to use
®
Spectroquant CombiCheck 30, Cat.No. 114677.
Ready-for-use copper standard solution Certipur
Cat.No. 119786, concentration 1000 mg/l Cu, can also
be used after diluting accordingly.
To check for sample-dependent effects the use of addition
solutions (e.g. in CombiCheck 30) is highly recommended.
114553
Cell Test
Add 5 drops of Cu-1K,
close with the screw
cap, and mix.
®
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