Metrohm 871 Advanced Bioscan - Manual (Page 9)

1.1 Instrument description
1 Introduction
1.1 Instrument description
The 2.871.0010 Bioscan is a PC-controlled measuring instrument for
the sensitive analysis of carbohydrates by ion chromatography using
pulsed amperometric detection. The compact housing of the 871 Ad-
vanced Bioscan contains several IC system components:
• Column compartment – the perfect insulation of the housing cre-
ates not only stable thermal conditions for the separating columns,
but also shields the system from electromagnetic interference; in
addition to the column it also contains the detection cell, pulsation
absorber and injection valve.
• Oven – amperometric determinations require extremely stable
thermal conditions. The built-in column compartment oven ensures
that all important components can be set exactly to a temperature
from 10°C above room temperature to 45 °C with a stability of
0.1°C.
• All components that come into contact with the eluent and the
sample, except the electrodes, are metal-free.
• Signal converter – the 871 Advanced Bioscan contains its own
analog/ digital converter for the detector signal. This means that
complete control of the instrument is possible from a PC via an
RS232 interface.
• Injection valve – for individual injections or for use with a sample
changer
Together with the 818 IC Pump, the 871 Advanced Bioscan forms a
complete IC system for carbohydrate analysis. Operation is via a PC
connected to the RS232 interface and uses the included «IC Net» con-
trol and evaluation program. This software fulfills all the requirements
which are placed today on a modern integration software: 1-point or
multi-point calibration, internal or external standard, selectable algo-
rithms for non-linear calibration, numerous Integration modes with se-
lectable parameters and integration events, various peak recognition
methods, peak editor, free scaling, superimposition of several chroma-
tograms, post-treatment of chromatograms, high-performance GLP-
conform report generator with output interfaces for monitor, printer and
external databases.
871 Advanced Bioscan / Instructions for Use 8.871.1003
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