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  

Simultaneous determination of major,minor and trace elements in red mud by high-pressure closed digestion and ICP-OES

作　　者：陈硕 李兵 谭海军[1] 胡振光 庄秀梅 CHEN Shuo;LI Bing;TAN Hai-jun;HU Zhen-guang;ZHUANG Xiu-mei(College of Chemistry and Bioengineeing,Guilin University of Technology,Guilin 541000,China;Guangxi Nonferrous Rare Earth Development Go.,Ltd.,Aluminum Corporation of China,Nanning 530000,China)

机构地区：[1]桂林理工大学化学与生物工程学院,广西桂林541000 [2]中铝广西有色稀土开发有限公司,广西南宁530000

出　　处：《现代化工》2021年第5期241-244,共4页Modern Chemical Industry

摘　　要：采用高压密闭的方法对赤泥进行样品消解,应用电感耦合等离子体发射光谱仪(ICP-OES)对赤泥中主量、次量与痕量元素进行了测定。通过实验确定了适宜的工作条件,分析了基体效应的干扰因素及消除方法,筛选并确定了各元素的分析谱线,探究了酸度效应、元素之间的干扰等情况。结果表明,本法加标回收率在92.1%~110.2%,检出限在0.000559~0.083916mg/L,可很好地满足实际分析检测要求。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 0.000559 mg·L^(-1)and 0.083916 mg·L^(-1),which can well meet the actual analysis and detection requirements.

关 键 词：赤泥 密闭消解 ICP-OES 干扰消除 含量测定 

分 类 号：O657.31[理学—分析化学]