Metrohm 850 Professional IC Anion MSM-HC MCS LP-Gradient - Manual (Page 13)

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1 Introduction
850 Professional IC–Anion – MSM-HC – MCS – LP Gradient
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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 850 Professional IC – Anion – MSM-HC – MCS – LP Gradient
can be used for the ion chromatographic determination of anions with
sequential suppression in cases where the complexity of the separation
problem requires the use of gradients.
Sequential suppression consists of:
￭ Chemical suppression by the Metrohm Suppressor Module (MSM) and
subsequent
￭ CO
2
suppression by the Metrohm CO
2
Suppressor (MCS) (see Chapter
3.20, page 63).
The use of this technology reduces background conductivity to an abso-
lute minimum.
If required, the instrument can also be used as a normal isocratic anion
system with sequential suppression or for the determination of cations
and anions without suppression.
The present instrument is suitable for processing chemicals and flammable
samples. The usage of the 850 Professional IC – Anion – MSM-HC – MCS
– LP Gradient therefore requires that the user has basic knowledge and
experience in the handling of toxic and caustic substances. Knowledge
with respect to the application of the fire prevention measures prescribed
for laboratories is also mandatory.