114691
Cell Test
COD
Chemical Oxygen Demand
Place the cell into the
cell compartment. Align
the mark on the cell with
that on the photometer.
Carefully pipette 2.0 ml
of the sample into a
reaction cell, close tight-
ly with the screw cap,
and mix vigorously.
Caution, the cell
becomes hot!
Suspend the bottom sed-
iment in the cell by swirl-
ing.
Heat the reaction cell in
the thermoreactor at
148 °C for 2 hours.
Remove the cell from
the thermoreactor and
place in a test-tube rack
to cool.
Swirl the cell after
10 minutes.
Replace the cell in the
rack for complete cooling
to room temperature.
Very important!
Measuring 300 – 3500 mg/l COD or O
2
range: Expression of results also possible in mmol/l.
Release 06/2014 - Spectroquant
®
UV/VIS Spectrophotometer Pharo 300
Quality assurance:
To check the measurement system (test reagents,meas-
urement device, and handling) w
e recommended to use
Spectroquant
®
CombiCheck 80, Cat.No. 114738, or the
Standard solution for photometric applications, CRM,
Cat.No. 125031, 125032, and 125033.
To check for sample-dependent effects the use of addition
solutions (e.g. in CombiCheck 80) is highly recommended.
To Next Page
Loading...