Simultaneous determination of major,minor and trace elements in red mud by high-pressure closed digestion and ICP-OES
CHEN Shuo1, LI Bing2, TAN Hai-jun1, HU Zhen-guang2, ZHUANG Xiu-mei1
1. College of Chemistry and Bioengineeing, Guilin University of Technology, Guilin 541000, China; 2. Guangxi Nonferrous Rare Earth Development Co., Ltd., Aluminum Corporation of China, Nanning 530000, China
Abstract: Red mud samples are digested by high-pressure closed method,and the major,minor and trace elements in the red mud are determined by inductively coupled plasma emission spectrometer (ICP-OES).Through experiments,the suitable working conditions are determined,and the interference factors and elimination methods of the matrix effect are analyzed.The analysis spectral lines of each element are screened and determined,and the acidity effects and the interference between elements are explored.It is shown that the recovery rate of this method is between 92.1% and 110.2%,and the detection limit is between 0.000 559 mg·L-1 and 0.083 916 mg·L-1,which can well meet the actual analysis and detection requirements.
陈硕, 李兵, 谭海军, 胡振光, 庄秀梅. 高压密闭消解—ICP-OES法同时测定赤泥中主量、次量与痕量元素[J]. 现代化工, 2021, 41(5): 241-244.
CHEN Shuo, LI Bing, TAN Hai-jun, HU Zhen-guang, ZHUANG Xiu-mei. Simultaneous determination of major,minor and trace elements in red mud by high-pressure closed digestion and ICP-OES. Modern Chemical Industry, 2021, 41(5): 241-244.