Millipore Spectroquant Multy Operating Manual page 105

Measuring range: 100–1500 mg/l COD or O
Carefully pipette 2.0 ml Carefully pipette 2.0 ml
of the sample into a of distilled water into a
reaction cell, close tight- second reaction cell,
ly with the screw cap, close tightly with the
and mix vigorously. screw cap, and mix vigor-
Caution, the cell ously.
becomes very hot! Caution, the cell
becomes very hot!
(Blank cell)
Replace both cells in the Select method 1 6 7 .
rack for complete cool-
ing to room temperature.
(Very important!)
Release 08/2014 - Spectroquant
COD (Hg-free)
Chemical Oxygen Demand
16-mm cell
2
Heat both cells in the
thermoreactor at 148 °C
for 2 hours.
Insert the blank cell into
the cell compartment.
Align the mark on the
cell with that on the pho-
tometer. Press Zero .
®
Multy
Remove both cells from
the thermoreactor and
place in a test-tube rack
to cool.
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) we recommended to use
the Standard solution for photometric applications, CRM,
Cat.No. 125029, 125030, 125031, and 125032.
109773
Cell Test
Swirl both cells after
10 minutes.