THE STUDY OF LUMINOL-H_2O_2-IO_4~--S~(2-)CHEMILUMINESCENCE SYSTEM AND ITS APPLICATION
Xi Li
Abstract
Xi Li
Abstract
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.
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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.
Key concepts: Chemiluminescence, Luminol, Detection limit, Chemistry, Catalysis, Linear range, Trace Amounts, Analytical Chemistry (journal)