Metrohm 940 Professional IC Vario TWO/SeS/PP - Manual (Page 11)

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1 Introduction
940 Professional IC Vario TWO/SeS (2.940.2400)
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Detector
Metrohm offers a series of different detectors for various analysis tasks. A
suitable detector type must be ordered as a separate accessory.
Sample degasser
The sample degasser removes gas bubbles and dissolved gases from the
sample.
Separation column
The intelligent separation column separates different components accord-
ing to their interactions with the column. Metrohm separation columns
are equipped with a chip where their technical specifications and history
(start-up, operating hours, etc) are stored.
1.2 Intended use
The 940 Professional IC Vario TWO/SeS is used for the determination of
cations and anions using ion chromatography. Sequential suppression can
be used for the anion channel.
Sequential suppression consists of:
￭ Chemical suppression with a Metrohm Suppressor Module (MSM) and
subsequent
￭ CO2 suppression with the Metrohm CO2 Suppressor (MCS).
Background conductivity is reduced to a minimum with sequential sup-
pression.
The two channels can be operated simultaneously or completely inde-
pendently of one another.
The present instrument is suitable for processing chemicals and flammable
samples. Usage of the 940 Professional IC Vario therefore requires the
user to have basic knowledge and experience in handling toxic and caustic
substances. Knowledge with respect to the application of the fire preven-
tion measures prescribed for laboratories is also mandatory.