Metrohm 850 Professional IC MSM-HC MCS Prep 3 - Manual (Page 12)

1.1 Instrument description
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850 Professional IC Anion – MSM-HC – MCS – Prep 3
Inline filter
Inline filters protect the separation column securely against possible con-
tamination from the eluent. Inline filters can however also just as well be
used for the purpose of protecting other sensitive components against
contaminations in the solutions used. The fine 2 µm material of the readily
and easily replaceable filter platelets removes particles such as bacteria
and algae from the solutions.
Pulsation damper
The pulsation damper protects the separation column from damage
caused by pressure fluctuations when switching the injection valve, and
reduces interfering pulsations during highly sensitive measurements.
Sample degasser
The sample degasser removes gas bubbles and disolved gases from the
sample. For degassing, the sample flows into a vacuum chamber through
a special fluoropolymer capillary.
Sample Preparation Module (SPM)
The SPM is used for inline sample preparation. Important applications
involve the cation exchange or the neutralization of samples before sam-
ple feeding.
Peristaltic pump
The Peristaltic pump is used for pumping sample and auxiliary solutions. It
can rotate in both directions.
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.
High Capacity Metrohm Suppressor Module (MSM-HC)
The MSM-HC is used for chemical suppression with high capacity during
anion analysis. It is pressure-stable, robust and resistant to solvents.
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.