摘要
目前许多地质科学工作者认为地球的原始物质成分与球粒陨石相似。由此可利用地质样品中稀土元素的含量与配分关系解决一系列重大地质问题,如地质年龄、矿物岩石成因,岩浆演化、物质来源等等。我们的报告旨在满足以上理论对稀土元素测定的要求。为此,我们拟定一个检出限低、准确度好,能同时测定全部稀土元素的分析方法。
This work concerns analyses performed by emission spectrometry employing ICP source for sample excitation. A domestic plasma generator was used and the torch was positioned horizontally to reduce background caused by intense plasma radiation and to increase the residence time of excited atoms in the source path, so that the limits of determination of 16 rare earth elements including scandium were nearly tenfold lower than that of conventional vertically positioned torch. The detection limits of different elements were in the range of 0.00x-0.0x ug/ml. and would be in the range of 0.0000x-0.00x ug/ml. if desolvation system was used. The RSD are usually around 4%,
出处
《岩矿测试》
CAS
1983年第1期71-75,共5页
Rock and Mineral Analysis
