SPECTRAL INTERFERENCES ON THE DETERMINATION OF SELENIUM BY ELECTROTHERMAL ATOMIC-ABSORPTION SPECTROMETRY

被引:29
作者
ALLER, AJ
GARCIAOLALLA, C
机构
关键词
SPECTRAL INTERFERENCES; MAGNESIUM; CALCIUM AND ALUMINUM CHLORIDE; ALUMINUM NITRATE; ELECTROTHERMAL ATOMIC ABSORPTION SPECTROMETRY;
D O I
10.1039/ja9920700753
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
The effects of chlorides and nitrates of magnesium, calcium and aluminium on the atomization of selenium from both the tube wall and L'vov platform (microboat) are compared. Different concentrations of these salts were used under the same conditions in order to characterize the shapes of the absorption peaks, charring profiles and spectral interferences of selenium. Ashing studies using chemical modification were then performed in order to overcome these chloride spectral interferences.
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页码:753 / 760
页数:8
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