树脂分离光度法测定金、钯、铂  

Determination of gold(Ⅲ),platinum(Ⅳ) and palladium(Ⅱ) using spectrophotometry mothod with resin separation

作　　者：马东兰[1] 王昀[2] 丁国生[1] 马狂飙[1] 王瑾晔[3] 

机构地区：[1]河南师范大学化学与环境科学学院,新乡453007 [2]上海交通大学附属新华医院血液科,上海200092 [3]上海交通大学生物医学工程系,上海200030

出　　处：《分析试验室》2011年第4期15-18,共4页Chinese Journal of Analysis Laboratory

基　　金：973国家重点基础研究发展计划项目(2005CB724300);微纳米尺度下表面生物学问题研究(2005CB724306)资助

摘　　要：用Amberlyst A-26大孔阴离子交换树脂分离金(Ⅲ)、铂(Ⅳ)和钯(Ⅱ)。在HAc-NaAc缓冲液中,用易溶于水的显色剂N-烯丙基-N'-(对氨基苯磺酸钠)硫脲(ASATu)和N-间甲苯基-N'-(对氨基苯磺酸钠)硫脲(MMPT)测定。前者测定金(Ⅲ),后者同时测定铂(Ⅳ)和钯(Ⅱ)。该法用于催化剂和阳极泥样品的测定,结果满意。其相对标准偏差(RSD)小于2.4%,回收率在96.0%～98.2%。铂(Ⅳ)和钯(Ⅱ)不需要予先分离可同时测定。Separation of Au（Ⅲ）,Pt（Ⅳ） and Pd（Ⅱ） with Amberlyst A-26 macropore anion-exchange resin in solution was carried out.Determination of these ions was proceeded in the medium of an HAc-NaAc buffer solution,with water-soluble color reagents ASATu and MMPT,ASATu was used for the determination of Au（Ⅲ）;the MMPT was used for simultaneous determination of Pt（Ⅳ） and Pd（Ⅱ）.The method has good selectivity and sensitivity.It can be used for the determination of contents of Au（Ⅲ）,Pt（Ⅳ） and Pd（Ⅱ） in catalyst materials and anode mud with satisfactory results.The relative standard deviations（RSDs） were less than 2.4%,and the recoveries（%）were in the range of 96.0%~98.2%.Simultaneous determination of Platinum（Ⅳ） and Palladium（Ⅱ） could be easily achieved without pre-separation.

关 键 词：AMBERLYST A-26树脂 金(Ⅲ) 铂(Ⅳ) 钯(Ⅱ) 光度法 

分 类 号：O657.3[理学—分析化学]