迭代目标转换因子分析光度法同时测定钯、铑  

Simultaneous Determination of Palladium and Rhodium Using Iterated Traget Transformation Factor Analysis-Spectrophotometry

作　　者：王英华[1] 周桂霞[1,1] 周桂霞[1,1] 王洪艳[1] 王多禧[1] 陈淑桂 

机构地区：[1]长春地质学院岩化系,长春130026

出　　处：《分析化学》1993年第11期1317-1319,共3页Chinese Journal of Analytical Chemistry

摘　　要：钯、铑二元素于HAc-NaAc缓冲介质中,在表面活性剂Triton X-100存在下与5-Br-PADAP形成灵敏度较高的紫红色络合物,其摩尔吸光系数分别为ε_(565)^(Pd)=1.44×10~5,ε_(562)^(Rh)=1.17×10~5(L·mol^(-1)·cm^(-1))。二元素络合物吸收光谱发生严重重叠。本文探讨了在上述体系中同时测定Pd、Rh的最佳条件,并采用迭代目标转换因子分析法(ITTFA)对Pd、Rh混合物合成样品进行同时测定。Colour reaction of Pd.Rh with 5-Br-PADAP and Triton X-100 has very sensitive in buffer solution of HAc-NaAc. The apparent molar absorptivity is Ⅲs65Pd = 1.44×105L · mol-1 ·cm-1,Ⅲ562Ph= 1. 17×105L · mol-1· cm-1. The best condition for simultaneous determination of Pd and Rh has been found in the system. And iterated traget transformation factor analysis-spectrophotometry has been applied to the simultaneous determination of Pd and Rh in mixture samples with satisfactory results.

关 键 词：因子分析 钯 铑 分光光度法 

分 类 号：O614.82[理学—无机化学]