褪色光度法测定微量硫化物的研究

Study on Decolor Spectrophotometric Determination of Sulfide

根据 S2 - 对 4- (对磺酸基苯基 ) -卟啉 ( TSPP)与铅显色反应的褪色干扰作用 ,建立了一种测定 S2 - 的新方法 ,该方法对 S2 - 的检出限为 1 0 μg/L,选择性较好 ,用于含硫废水中痕量 S2 - 的测定 ,结果令人满意。

Based on decoloring effect of S 2- on TSPP Pb 2+ color system,a new decolor spectrophotometric method for the determination of S 2- was established.The detection limit is 10μg/L.This method can be applied to the determination of S 2- in water with satisfactory results.