Validation of three atomic absorption spectrometric methods for the determination of selenium - A comparative evaluation of performance characteristics

被引:10
作者
Allabashi, R
Rendl, J
Grasserbauer, M
机构
[1] Institute of Analytical Chemistry, Vienna University of Technology, A-1060 Wien
来源
FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY | 1997年 / 357卷 / 08期
关键词
D O I
10.1007/s002160050298
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
Three AAS-methods for the determination of selenium at trace levels were validated and compared on the basis of their performance characteristics. It was observed that the sensitivity of determination of selenium increases from ET-AAS over FI-HG-AAS to HG-ET-AAS by a factor of 40, respectively 100. Moreover HG-ET-AAS exhibits extremely low detection limits enabling the determination of selenium in the ng/l-range. On the basis of recovery experiments. calibration by standard addition and analyses of reference materials matrix effects were not only evaluated (ET-AAS) but also eliminated (FI-HG-AAS).
引用
收藏
页码:1024 / 1028
页数:5
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