摘要
本文主要介绍了化探样品相态分析中无火焰原子吸收光度法测定化探样品中的铜、铬、钴、镍、铅、镉的分析方法。近年来 ,随着地质找矿工作的发展 ,地球化探人员对相态分析技术越来越感兴趣。在相态分析中 ,不同相态同一种元素的含量相差很大 ,给溶液的提取、制备及测定工作带来了很多不便。加之 ,大量的常量元素的存在尤其是钙、镁、锰、铁等元素极易产生干扰。在水溶态、离子态的分析液中铜、铬、钴、镍、铅、镉的含量又很低 ,给测试带来了很大难度。在相态的提取过程中 ,如果做平行样品分析的话一个样品至少要制备八份溶液 ,工作量很大。因此 ,找到一个简单、快捷而又稳定可靠的测试方法是十分必要的。在测定中采用了磷酸为基体改进剂 ,它不仅可以消除基体的干扰 ,并可使各种元素测定的精密度得到很大改善。
The method of analysis to the determination of Cu,Cr,Co,Ni,Pb,Cd in the phase analysis of geo-chemical exploration,;ampies by the HG-AAS has been introduced. In recent years, the workers of geo-chemical exploration are more interested in technology of phase analysis with the development of search for mineral in geology. In phase analysis, contents of the same element with different phase are largely differ so that it brings difficulties for extracting, preparation and determinatiun of the solution, In addition, the exist of many-common elements, especially Ca, Mg, Mn,Fe, are very easy to bring effects. But the contents of Cu, Cr,Co, Ni, Pb,Cd in the analysis solution of water-extractable phase and ion phase,are low and difficult to determination. During the extracting of the phase to carry out parallel samples analysis, one sample will prepare eight solution at least and large work. So it is necessary to search for a simple and quickly liable method of analysis. On determination, using phosphoric acid as matrix modifier, it not only eliminated the effect of matrix, but also improved the precision of all kinds of elements.
出处
《光谱学与光谱分析》
SCIE
EI
CAS
CSCD
北大核心
2002年第3期487-490,共4页
Spectroscopy and Spectral Analysis
