摘要
This paper reports a new chemiluminescence system i.e.luminol- H_2O_2-IO_4^- catalyzed by sulphide ion(S^(2-)).Based on this catalysis,a new chemiluminescence(CL)method for the determination of trace S^(2-)is pro- posed.The detection limit is 0.2μg/LS^(2-),the linear dynamic range is 5μg to 100βμg/L S^(2-)and the variation coefficient at an sulphide concentration of 100μg/L S^(2-)is 4.5%(n=10).The method has been satisfactory applied to the determination of trace sulphide ion in water.
This paper reports a new chemiluminescence system i.e.luminol- H_2O_2-IO_4^- catalyzed by sulphide ion(S^(2-)).Based on this catalysis,a new chemiluminescence(CL)method for the determination of trace S^(2-)is pro- posed.The detection limit is 0.2μg/LS^(2-),the linear dynamic range is 5μg to 100βμg/L S^(2-)and the variation coefficient at an sulphide concentration of 100μg/L S^(2-)is 4.5%(n=10).The method has been satisfactory applied to the determination of trace sulphide ion in water.
