Abstract:Application of ICP-AES in the analysis of rare earth elements in tea leaves, ICP-AES spectrometry has been employed to determine the concentrations of rare earth elements (REES) in tea leaves. For prompt sample decomposition, a microwave digestion was successfully used with a mixture of HF/HNO3. The potential of the method was evaluated by analysis of REEs in standard reference materials (GBW07603,GBW08513). Viscosity effects of the tea leaves solutions are corrected using scandium as an internal standard. Major, minor and trace elements were determined in a single analysis.The results agree well with the certified values. The experimental results show that the proposed method is simple, precise and accurate, and that the concentrations and distribution of REEs in plants vary with plant types.This essay integrate ICP-AES and the axially-Viewed Simultaneous ICP-AES together, it have some innovation and practical value.
关键词:电感耦合等离子发射光谱;稀土元素;茶叶;微波消解