【摘要】 <正> 感耦高频等离子体发射光谱分析要求在总盐分浓度较低的溶液中进行,因此在测定岩石中的微量元素时,一般需要分离大量的基体元素。PAN不仅可作显色剂和金属指示剂,还可作萃取剂,此外还能与多种金属离子即使是微量元素也形成难溶性的沉淀。本文在文献的基础上,对铜、镍、铁、铌、更多还原

【Abstract】 A method for ICP-AES determination of 31 trace elements in rocks with PAN enriching was studied. These elements were precipitated with PAN in a chloride solution of pH 8. The Precipitate was then dissolved in 5% HCI solution.The dissolved amounts of iron and aluminium were so small that they could not cause interference in the determination. In this method the concentrations of Nb, Ta, Hf, Th, Sc, Cr, Ni, Ti, V, Mn, Pb, Zn, Sn, Cd, In, La, Ce, Pr,Nd,Sm, Eu. Gd, Tb, Dy, Ho, Er, Tin, Lu and Y were determined simultaneously by ICP-AES method.更多还原