COLORIMETRIC DETERMINATION OF THORIUM WITH METHYLTHYMOL BLUE

被引:19
作者
ADAM, J
PRIBIL, R
机构
[1] Institute of Geological Sciences Charles University, Prague
关键词
D O I
10.1016/0039-9140(69)80224-9
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
Thorium forms with Methylthymol Blue (MTB) in alkaline medium (pH 9-10) a complex of the composition Th(MTB)2, even in the presence of EDTA, which masks almost all metals against the reagent. This can be used for selective determination of traces of thorium (0.5-2.8 ppm) by measurement of the absorbance at 535 nm. © 1969.
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页码:1596 / &
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