Metrohm Co Suppressor (Mcs); General Information On The Mcs - Metrohm 930 Compact IC Flex Manual

3.11 Metrohm CO Suppressor (MCS)
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3.11 Metrohm CO
3.11.1

General information on the MCS

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1 Fasten the capillary labeled rinsing solution to the outlet of an inline
filter (6.2821.120) using a pressure screw (6.2744.070).
2 Use a pressure screw (6.2744.070) to fasten a piece of the PTFE
capillary (6.1803.030) to the inlet of the inline filter.
3 Use a pressure screw (6.2744.070) and an adapter (6.2744.080) to
fasten the other end of the PTFE capillary to Port 3 of the Dosino.
4 Connect the FEP tubing (6.1805.120) from the bottle with the rinsing
solution with the adapter (6.1808.280) to Port 4 of the Dosino.
Suppressor (MCS)
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NOTE
The Metrohm CO Suppressor (MCS) is used only in conjunction with
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conductivity detection with chemical suppression.
The Metrohm CO Suppressor (MCS) removes the CO
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stream. This lowers the background conductivity, improves detection sen-
sitivity and minimizes the injection peak and carbonate peak.
CO can enter the eluent stream through the sample itself or can develop
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due to the suppression reaction in the suppressor. Connecting the MCS
between the suppressor and detector minimizes the carbonate peak in the
chromatogram.
The MCS essentially consists of a degassing cell containing a capillary
made from a fluoropolymer membrane. The capillary is permeable to
gases. The degassing cell is connected to the vacuum pump. In the
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from the eluent
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930 Compact IC Flex SeS (2.930.1400)