IMPROVED METHOD FOR THE DETERMINATION OF MANGANESE IN NUCLEAR-POWER-PLANT WATERS

An improved method for manganese deterMination in nuclear power plant waters has been developed. This method combines a selective chelation concentration method with a unique analytical separation for manganese from the interfering matrix using a weak acid cation exchange column. The detection sensitivity by conventional post-column derivatization is improved with the combination of chemical eluent suppression and su bsequent post-column derivatization. The detection limit for manganese in ammonium matrix is approximately 2 pg/ml and the limit of quantita tion 10 pg/ml with 100 ml sample volume.