四酸溶样—原子吸收光谱法测定锂精矿中锂铷铯
Determination of lithium,rubidium,and cesium in lithium concentrate by tetra-acid sample dissolution-atomic absorption spectrometry
罗小兵 1刘芳美 1刘娜 1黄路路 1甘聪 1戴秋香1
作者信息
- 1. 紫金铜业有限公司;福建省铜绿色生产及伴生资源综合利用重点实验室
- 折叠
摘要
锂精矿是一种含有高品位锂的天然矿物,且含有丰富的铷和铯,准确测定3 种元素含量具有重要现实意义.采用四酸溶解锂精矿,在稀硝酸介质中,采用原子吸收光谱法测定锂精矿中的锂、铷、铯含量.本方法准确度高、精密度好,加标回收率为98.67%～99.67%,测定结果的相对标准偏差均小于5%,且与国标法测定结果一致,可用于行业推广.
Abstract
Lithium concentrate is a natural mineral grade a high grade of lithium,as well as abundant rubidium and cesium.Accurate determination of the content of these 3 elements is of great practical significance.Tetra-acid sample dissolution was used to dissolve lithium concentrate,and the content of lithium,rubidium,and cesium in lithium con-centrate was determined by atomic absorption spectrometry in a dilute nitric acid medium.This method has high accu-racy and good precision,with a spike recovery rate of 98.67%-99.67%.The relative standard deviations of the measurement results were all less than 5%,and they were consistent with the results obtained by the national standard method,making it suitable for industry promotion.
关键词
锂精矿/锂/铷/铯/原子吸收光谱法Key words
lithium concentrate/lithium/rubidium/cesium/atomic absorption spectrometry引用本文复制引用
出版年
2024
NETL
NSTL
万方数据