General Catalog

Alternative Detectors
Electrochemical Detectors
791 IC VA Detector (2.791.0020)
Amperometric Detector for Ion Chromatography.
Electrochemical (amperometric) detection with the
791 IC VA Detector is an extremely sensitive detection
method that is used successfully in both HPLC and ion
chromatography. This method is also characterized by
its very high selectivity: Only easily oxidizable or reducible
substances are detected – chloride or sulfate are
not detected and do not interfere with the electrochemical
determination, even in high concentrations.
The detector can be used in series or in parallel with
other detectors that are normally used in IC or HPLC
(e.g. conductivity or UV/VIS detectors).
Numerous electrodes suitable for each amperometric
application are available.
871 Advanced Bioscan (2.871.0010)
Pulsed amperometric detector for the highly sensitive
determination of sugars, sugar alcohols and sugar
acids, polysaccharides and other oxidizable substances.
Measuring cell not included.
The 871 Advanced Bioscan extends the modular IC
program from Metrohm by including carbohydrate
analysis in the range of IC applications. The heart of
the 871 Advanced Bioscan is the pulsed amperometric
detector with built-in injector and column heater. Control
is via the Metrodata IC Net software.
Besides carbohydrates the 871 Advanced Bioscan is
used to determine oxidizable inorganic anions. There
are different measuring cells with either gold, silver,
platinum or glassy carbon as electrode material available.
60 — IC