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cation ic system the setup of the «mic-4 advanced» the modular cation system with electronic suppression and sample preconcentration is as simple as it is effective isocratic analyses are carried out with freely selectable eluent serial double-piston 818 ic pump injection valve with ic cation preconcentration column high-performance separation column for cations ­ which is contained in the 820 ic separation center with column heating ­ and 819 ic conductivity detector chemical suppression is not needed as this would interfere with the determination of the transition metals in addition to the alkali ...