微波消解-ICP-AES法测定拟薄水铝石中11种微量或痕量杂质元素  

Determination of 11 micro or trace elements in pseudoboehmite by ICPAES with microwave digestion

作　　者：马兵兵 弥海鹏 周西林 苏中华 王亚森 邓雄 

机构地区：[1]重庆市计量质量检测研究院,重庆400020

出　　处：《分析试验室》2017年第2期194-197,共4页Chinese Journal of Analysis Laboratory

基　　金：重庆市质量技术监督局科技攻关项目(CQZJKY2014029)资助

摘　　要：采用微波消解,ICP-AES法测定了拟薄水铝石中Si,Fe,Na,K,Ca,Mg,Zn,Ti,V,P,Li等11种微量和痕量杂质元素含量。样品用王水溶解,在200℃密闭消解30 min,冷却定容后进行测定。用各元素标准溶液绘制校准曲线,用高纯铝基体匹配校正基体效应。在选定的仪器工作条件下,11种被测杂质元素的检出限范围0.0024~0.42μg/m L,当杂质元素含量大于0.001%时,本法测定值与XRF法和AAS法的测定值相符,不同元素测定值的相对标准偏差(n=10)在0.70%~4.8%之间。ICP-AES was applied to the determination of 11 micro or trace elements including Si,Fe,Na,K,Ca,Mg,Zn,Ti,V,P and Li in pseudoboehmite with microwave digestion.The samples were dissolved in aqua regia and digested at 200℃ for 30 min,and then diluted with water to constant volume for the determination after cooling.The calibration curve was plotted with the standard solution of each element,and the matrix effect was corrected with the high purity aluminum matrix.Under the optimal conditions of instrument,the detection limits of the eleven impurity elements were found in the range of 0.0024 μg/mL - 0.42 μg/mL.The values obtained by this method were consistent with those of XRF and AAS method,when the impurity elements is greater than 0.001%,and the RSDs（n =10） were in the range of 0.70% - 4.8%.

关 键 词：微波消解 ICP-AES法 拟薄水铝石 微量元素 痕量元素 

分 类 号：TF03[冶金工程—冶金物理化学]