Metrohm 850 Professional IC Anion MCS Prep 2 - Manual (Page 14)

1.1 Instrument description
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850 Professional IC – Anion – MCS – Prep 2
Injection valve
The injection valve connects the eluent and sample path through rapid
and precise valve switchover. A precisely measured amount of sample
solution is injected and rinsed with eluent onto the separation column.
Column thermostat
The column thermostat controls the temperature of the column and elu-
ent channel and thus ensures stable measuring conditions. It provides
space for 2 separation columns.
Metrohm Suppressor Module (MSM)
The MSM is used for chemical suppression during anion analysis. It is pres-
sure-stable, robust and resistant to solvents.
Peristaltic pump
The Peristaltic pump is used for pumping sample and auxiliary solutions. It
can rotate in both directions.
Metrohm CO
2
suppressor (MCS)
The MCS removes the CO
2
from the eluent flow. This reduces the back-
ground conductivity, improves the detection sensitivity and minimizes the
injection and carbonate peaks.
Conductivity detector
The conductivity detector continuously measures the conductivity of the
liquid passing through and indicates these signals in digital form (DSP –
Digital Signal Processing). The conductivity detector exhibits outstanding
thermal stability and thus guarantees reproducible measuring conditions.
Separation column
The intelligent separation column is the heart of the ion chromatographic
analysis. It separates the different components corresponding to their
interactions with the column. The Metrohm analytical columns are equip-
ped with a chip on which their technical specifications and their history
(first use / setting up, operating hours, injections, ... ) are saved.