摘要
基于0.01mol/L的H2SO4介质中,在乳化剂OP存在时,痕量锡催化溴酸钾氧化二甲基黄的褪色反应,建立了测定痕量锡的催化光度法。方法检出限为0.076μg/L,线性范围为0-2.0μg/L。结合磷酸三丁酯色谱分离,用于测定水、人发及水系沉积物样品中的痕量锡,结果满意。
Based on the catalytic effect of trace tin on discoloring reaction of Dimethyl yellow with potassium bromate in 0.01 mol/L sulphuric acid solution and in the presence of emulsion OP,a method for the determination of trace tin by kinetic spectrophotometry has been developed.The detection limit is 0.076 μg/L and the linear range of determination is 0-2.0 μg/L for tin.Combined with tributyl phosphate (TPB) chromatographic separation,the method has been applied to the determination of trace tin in water,human hair and stream sediment reference samples with satisfactiory results.
出处
《南昌大学学报（理科版）》
CAS
北大核心
2004年第2期163-166,共4页
Journal of Nanchang University(Natural Science)
关键词
锡
动力学光度法
二甲基黄
溴酸钾
tin
kinetic spectrophotometry
dimethyl yellow
potassium bromate
