Pogrebniak O. Spectrophotometric determination of hypochlorite, bromate and iodate N,N-dietilaniline

The dissertation is devoted to the elaboration of indicator reactions based on the oxidation of N,N-diethylaniline (DEA) for the spectrophotometric (SP) and the visual test-determination of hypochlorite, bromate and iodate. The SP methods for hypochlorite, bromate, and iodate determination have been developed. The detection limit is 0.03, 0.10 and 0.09 mg/L respectively. The relative standard deviation is less than 0.09. The visual test-method for rapid determining of hypochlorite using the color scale in the range of 25/1000 mg/L has been proposed. The methods were tested at analysis of water of various categories, bleaching agents and iodized salt. The main advantages in comparison to the best analogues are higher selectivity and/or sensitivity, simplicity, availability of reagents, rapidity, environmental safety and ease of procedure of analysis.