ICP-AES测定龙南稀土矿区土壤中的稀土元素  

Determination of Rare Earth Elements in the Soil of Longnan Mine Area by ICP-AES

作　　者：刘霞[1] 李伟[1] 丁冶春[1] 夏侯国论[1] 李杰[1] 张岭仙 范小娜[1] 

机构地区：[1]赣南医学院,江西赣州341000

出　　处：《赣南医学院学报》2015年第6期859-861,866,共4页JOURNAL OF GANNAN MEDICAL UNIVERSITY

基　　金：国家自然科学基金项目(21167001);江西省科技厅科技支撑项目(20111BBG70029-1);江西省自然科学基金项目(20132BAB215025)

摘　　要：目的：建立电感耦合等离子体发射光谱法（ICP-AES）测定龙南稀土矿区土壤样品中稀土元素含量,探究稀土元素含量与离矿区距离之间的相关性。方法：采用HNO3-HCl-HF-H2O2酸体系微波消解样品,ICP-AES测定龙南矿区表层土、心层土,底层土及距矿区1、3、5,50和80 km的土壤中各稀土元素的含量。结果：本实验的测定方法线性范围宽,检出限低,灵敏度高,精密度为1.34%-4.07%（RSD,n=5）,回收率为96.5%-104.0%。结论：本方法简单灵活,结果可靠,适合于龙南土壤样品中稀土元素的测定。Objective： To establish the determination method for the content of rare earth elements in the soil of Longnan mine area by ICP-AES, and toanalyze the correlation between the content of rare earth elements and the distance away from the mining area. Methods： HNO3-HC1-HF-H2O2 was used to digest the samples as acid system. The content of rare earth elements was determined in the soil samples by ICP-AES, which were in the surface soil, core layer soil, and subsoil in the longnan mining area, and 1 km, 3 km, 5 km, 50 km and 80 km away from the longnan mining area. Results： Experiment reflected its characteristics of wide linear range, low detection limit and high sensitivity. The relative standard deviation and recoveries were 1.34% - 4.07% （ RSD, n = 5 ） and 96.5% - 104.0% , respectively. Conclusion： This method is simple, flexible, reliable, and suitable for the determination of rare earth elements in Longnan soil samples.

关 键 词：电感耦合等离子体-发射光谱法 土壤 稀土元素 

分 类 号：P618.7[天文地球—矿床学]