Millipore Spectroquant Multy Operating Manual page 63

Colorimeter
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Measuring range: 25 – 1000 µg/l Cd
Check the pH of the
Select method 1 0 0 .
sample, specified range:
pH 3 – 11.
If required, add dilute
sodium hydroxide
solution or sulfuric acid
drop by drop to adjust
the pH.
Add to each cell 1 level
Shake both cells vigor-
green microspoon of
ously to dissolve the
Cd-2K, close with the
solid substance.
screw cap.
Important:
For the determination of total cadmium a pretreatment
with Crack Set 10C, Cat.No. 114688 or Crack Set 10,
Cat.No. 114687, and thermoreactor is necessary.
Release 08/2014 - Spectroquant
Cadmium
16-mm cell
Pipette 5.0 ml of the
sample into a reaction
cell, close with the
screw cap, and mix.
Reaction time:
2 minutes
Press Enter to start
the countdown.
®
Multy
Pipette 5.0 ml of distilled
water into a second
reaction cell, close with
the screw cap, and mix.
(Blank cell)
Insert the blank cell into
the cell compartment.
Align the mark on the
cell with that on the pho-
tometer. Press Zero .
Quality assurance:
To check the measurement system (test reagents, meas-
urement device, and handling) we recommended to use
®
Spectroquant
CombiCheck 30, Cat.No. 114677.
The measurement results are expressed in µg/l.
Ready-for-use cadmium standard solution Certipur
Cat.No. 119777, concentration 1000 mg/l Cd, 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.
114834
Cell Test
Add 0.20 ml each of
Cd-1K with pipette,
close with the screw
cap, and mix.
Insert the cell containing
the sample into the cell
compartment. Align the
mark on the cell with
that on the photometer.
Press Test .
®
,

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