Release 08/2014 - Spectroquant
®
Multy
114553
Cell Test
Copper
Measuring range: 0.05 – 8.00 mg/l Cu
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)
Select method 1 8 0 .
Insert the cell containing
the sample into the cell
compartment. Align the
mark on the cell with
that on the photometer.
Press Test .
Reaction time:
5 minutes
Press Enter to start
the countdown.
Check the pH of the
sample, specified range:
pH 4 – 10.
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 mix.
Add 5 drops of Cu-1K,
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.
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.
Insert the blank cell into
the cell compartment.
Press Zero .
