N-甲基-N′-(氨基对苯磺酸钠)硫脲光度法测定铂(Ⅳ)  

Spectrophotometric determination of micro amounts of platinum with N-methyl-N′-(sodium p-aminobenzenesulfonate)thiourea(MPT)

作　　者：蒋玲[1] 李淑勉[1] 李占才[1] 王晓杰[1] 方少明[1] 

机构地区：[1]郑州轻工业学院材料与化工学院,河南郑州450002

出　　处：《化学研究与应用》2005年第5期703-704,共2页Chemical Research and Application

摘　　要：A method of spectrophotometric determination of micro amounts of platinum with MPT was proposed.Beers law is obeyed in the range of 0～3.7mg·L1Pt（Ⅳ）,an apparent molar absorptivity of ε682.0=5.46×104L·mol-1·cm-1.The method has been applied to the determination of platinum in minerals and catalysts with satisfactory results.A method of speetrophotometrie determination of micro amounts of platinum with MPT was proposed. Beers law is obeyed in the range of 0 - 3. 7mg · L^-1pt（ Ⅳ ）, an apparent molar absorptivity of ε628.0 = 5.46 × 10^4L · mol^-1 · cm^-1. The method has been applied to the determination of platinum in minerals and catalysts with satisfactory results.

关 键 词：铂 分光光度法 N-甲基-N′-(氨基对苯磺酸钠)硫脲(MPT) 

分 类 号：O657.32[理学—分析化学]