弱碱性阴离子树脂分离富集-发射光谱法测定痕量钯  

Determination of Trace Palladium by Emission Spectrometry with Alkalescence Anion Resin Pre-concentration

作　　者：王玉林[1] 孙爱琴[2] 姚文生[2] 王烨[3] 李艳华[3] 

机构地区：[1]河南省地矿局第三地质调查队,河南信阳464000 [2]河南省地质调查院,河南郑州450007 [3]河南省岩石矿物测试中心,河南郑州450012

出　　处：《岩矿测试》2007年第5期395-397,共3页Rock and Mineral Analysis

基　　金：国土资源大调查项目资助(1212010660901-03)

摘　　要：在盐酸介质中，钯与氯离子发生反应生成配合物[PdCl6]^2-，该配合物能被大孔弱碱性苯乙烯系阴离子交换树脂吸附。吸附物灰化后，灰分与缓冲剂混合均匀，全部装入杯形电极，发射光谱法测定钯。方法检出限为0．12ng／g（10．0g样品）。方法经国家一级标准物质验证，测定值与标准值相符，精密度（RSD，n=12）为8．9％～13．9％，回收率为89％～118％。方法已用于测定水系沉积物中的痕量钯。In 1% - 10% of hydrochloric acid solution, Pd^2＋ forms [ PdCl6 ]^2- with Cl^- and the complex can be adsorbed by Styrene-DVB-D301G macropore alkalescence anion resin. The adsorption material is ashed and mixed with buffer, then added in electrode and determined by emission spectrometry. The detection limit of the method is 0.12 ng/g for Pd. The method has been applied to the determination of Pd in National Standard Reference Materials and the results are in agreement with the cerified values. The recovery of the method is 89% 118% with precision of 8.9% -13.9% RSD （n = 12）. The method has been also applied to the determination of trace Pd in sediments.

关 键 词：弱碱性阴离子树脂 分离富集 钯 发射光谱 

分 类 号：O658.1[理学—分析化学] O657.31[理学—化学]