The determination of Ge by atomic fluorescence spectrometry with electrochemical hydride generation

被引：0

作者：

Zhang, WB ^{[1
]}

Gan, WE ^{[1
]}

Su, QD ^{[1
]}

Lin, XQ ^{[1
]}

机构：

[1] Univ Sci & Technol China, Dept Chem, Hefei 230026, Peoples R China

来源：

CHINESE JOURNAL OF ANALYTICAL CHEMISTRY | 2005年 / 33卷 / 10期

关键词：

graphite tube; electrochemical hydride generation; atomic fluorescence spectrometry; germanium;

D O I：

暂无

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The determination of Ge by electrochemical hydride generation (Ec-HG)-atomic fluorescence spectrometer (AFS) was developed. A specially designed tubular electrolytic cell was used for hydride generation. The cell consisted of graphite tube cathode and platinum anode. When electrolysis began, hydride-forming elements were reduced to gaseous hydrides on cathode surface and were transported to gas liquid separator by carrying gas for AFS determination. The detection limits (3 delta) of Ge in aqueous solution was 0.67 mu g/L, the RSD for 11 replicate measurements of 200 mu g/L Ge was 1.7%. The technique has been applied to the determination of Ge in the reference materials. The analytical results were in good agreement with certified values. The effects of the hydride and interferences have been studied.

引用

页码：1449 / 1451

页数：3