학술논문
Indirect determination of total yttrium and lanthanides by flame atomic absorption measurement of magnesium after extraction of their ternary complexes with purpurin (1,2,4-trihydroxyanthraquinone) and magnesium into isobutyl methyl ketone
Document Type
Article
Author
Source
JAAS (Journal of Analytical Atomic Spectrometry); August 1998, Vol. 13 Issue: 8 p765-768, 4p
Subject
Language
ISSN
02679477; 13645544
Abstract
The elements La, Y, Pr, Nd, Sm and Ce form with MgII and purpurin (1,2,4-trihydroxyanthraquinone) mixed-metal complexes which can be extracted into isobutyl methyl ketone at pH 7.5. The total content of these metals can be determined by measuring the magnesium absorbance by AAS. The proposed method, which permits the determination of concentrations at ppb levels, was applied to the analysis of synthetic samples with good results.