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

1.2 Intended use
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850 Professional IC – Cation – 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.
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 – Cation – Prep 2 is used for the ion chroma-
tographic determination of cations and anions (without suppression).
The peristaltic pump and the additional injection valve in the lower
area of the instrument are used for inline sample preparation and calibra-
tion techniques – e.g. Matrix elimination with transfer procedure or
Standard addition with preconcentration.
For sample dilution Metrohm offers a special equipment (6.5330.020).
The present instrument is suitable for processing chemicals and flammable
samples. The usage of the 850 Professional IC – Cation – Prep 2 therefore
requires that the user has basic knowledge and experience in the handling
of toxic and caustic substances. Knowledge with respect to the applica-
tion of the fire prevention measures prescribed for laboratories is also
mandatory.