Metrohm 2.850.2230, Manual, Page: 74 / 150

3.20 Metrohm CO
2
suppressor (MCS)
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64
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850 Professional IC–Anion – MSM-HC – MCS – LP Gradient
3 Aspirating capillary
For aspirating air low in CO
2
(as a result of
CO
2
adsorption cartridge (36-
4
) ).
4 PEEK pressure screw, long 6.2744.090
5 Capillary connection 6 Pressure screw, short 6.2744.070
Mounted on the air aspirating capillary.
7 Luer coupling 6.2744.120
Mounted on the air aspirating capillary with
pressure screw 6.2744.070.
Connecting the MCS
1 Connecting the MSM
Connect the eluent output capillary (labeled with Detector ) using a
6.2744.090 long PEEK pressure screw (35- 4 ) to the MCS inlet (35- 1 ) .
2 Connecting the detector
Connect the detector input capillary (37-
3
) using a long PEEK pres-
sure screw 6.2744.090 (35-
4
) to the MCS output (35-
2
) .
CAUTION
If the MCS is not used, the input and output should be sealed with
6.2744.220 stoppers.
3.20.3 Installing the adsorption cartridges
For effective CO
2
removal, the air sucked through the degassing cell
should be as low in CO
2
as possible. To achieve this, the air is aspirated
through a 6.2837.000 CO
2
adsorption cartridge (36- 4 ) .
Moisture can block the CO
2
adsorption cartridge. In order to prevent this,
a 6.2837.010 H
2
O adsorption cartridge (36- 7 ) is connected upstream.