H. Weinberg
Jun 10, 1994
Citations
1
Influential Citations
45
Citations
Journal
Journal of Chromatography A
Abstract
Abstract Ozonation of surface waters that contain bromide result in the formation of bromate which has been identified as a potential carcinogen. Regulation of bromate at the preferred concentration of less than 5 μg/1 is being delayed due to lack of a validated analytical method for quantification at this level. This paper describes the integrated use of a silver cation resin to reduce closely eluting chloride from aqueous samples followed by a chelation column to remove leached silver prior to pre-concentration of 4-ml samples on an anion-exchange column. A borate eluent used under gradient conditions allows for bromate determination at 0.5 μ/1 in treatment plant waters that, hitherto, were reported to be devoid of bromate.