Direct Determination of Trace Tellurium, in Geochemical Samples Hydride Generation-Atomic Fluorescence Spectrometry

详细信息   

• 责任者：Lin Guangxi (Geological Survey of Jiangsu Province ; Nanjing 210018 ; China)
• 刊名：Rock and Mineral Analysis
• 出版年：2008
• 卷期：27(2)
• 关键词：原子荧光光谱法 ; atomic fluorescence spectrometry ; 碲 ; tellurium
• 页码：p.151-152
• 图表：2 illus., 2 tables, 8 refs.
• 分类号：0900
• issnNo：ISSN0254-5357
• isbnNo：CN11-2131/TD

摘要

A method for the direct determination of tellurium in geochemical samples by hydride generation-atomic fluorescence spectrometry (HG-AFS) was established. The sample was decomposed with mixed acid of HNO₃-HF-HClO₄. The instrumental parameters were optimized and the effect of some influencing factors such as HCl and KBH4 concentrations on Te determination were studied. The detection limit of the method for Te is 0.0031 µg/g. The method has been applied to the determination of trace tellurium in National Standard Reference Geochemical Materials and the results are in agreement with certified values with precision of less than 6.10% RSD (n=11).