2 intended use, Intended use – Metrohm 850 Professional IC Anion MCS Prep 1 User Manual
Page 14
1.2 Intended use
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850 Professional IC – Anion – MCS – Prep 1
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.
1.2
Intended use
The instrument 850 Professional IC – Anion – MCS – Prep 1 is used
for ion chromatographic determination of anions or polar substances with
sequential suppression:
￭
Chemical suppression with the Metrohm Suppressor Module (MSM)
(see Chapter 2.16, page 49) and subsequent
￭
CO
2
suppression with the Metrohm CO
2
The use of sequential suppression reduces background conductivity to a
minimum.
If required, the instrument can also be used for the determination of cati-
ons or anions without suppression.
The peristaltic pump and the holder in the lower part of the instrument
are used for the inline sample preparation – e.g. for Dialysis or Ultrafil-
tration. Metrohm offers special equipment for dialysis (6.5330.000) and
ultrafiltration (6.5330.010) in which the respective cell is also contained.