矿石中超痕量铂钯金铑的同时测定  

Ultra Trace Determination of Platinum,Palladium,Gold and Rhodium in Minerals

作　　者：徐慧[1,2] 王继林[1,2] 王国彦[1,2] 刘美华 鲁保银 吕梓龄 冯文安[1,2] 陈星珍 

机构地区：[1]云南大学实验中心 [2]云南省地质矿产局测试中心

出　　处：《光谱学与光谱分析》1999年第2期191-193,共3页Spectroscopy and Spectral Analysis

摘　　要：本文用王水溶矿，在王水或用盐酸赶硝酸后的盐酸介质中和氯化亚锡存在下用负载二苯基硫脲的混合碳粉富集痕量Ｐｔ（Ⅱ）、Ｐｄ（Ⅱ）、Ａｕ（Ⅲ）、Ｒｈ（Ⅰ）络合物，吸附载体灰化后加入适量碳粉用发射光谱测定，方法简便，操作易掌握。Our work studied the minerals dissolved in aqua regia.The trace Pt(Ⅱ),Pd(Ⅱ) Au(Ⅲ) and Rh(Ⅰ) complexes were loaded by the mixed carbon powder which carried diphenyl thiourea when aqua regia or hydrochloric acid media as well as stannous chloride were present.We added some carbon powder in ashen loader and determined the elements with atomic emission spectrometry.The determination sensitivity counted with 10 grams of samples is 1×10 -9 .The RSD for 0 05×10 -6 standard Pt,Pd,Au and Rh solutions are 6 0%,5 1%,8 5% and 11 4%,respectively.The method is simple and operation is easy.The results satisfy our requirement.

关 键 词：矿石 铂 铯 金 铑 测定 原子发射光谱 

分 类 号：P575.3[天文地球—矿物学]