Micellar Electrokinetic Chromatographic Separation and Quantitative Analysis of Thorium, Uranium, Gold, and Mercury from Environmental Ore Samples

被引：3
|
作者：
Mallah, A. [2 ]
Memon, S. Q. [1 ]
Khuhawar, M. Y. [2 ]
Solangi, A. R. [3 ]
Bhanger, M. I. [3 ]
机构：
[1] Univ Sindh, Inst Adv Res Studies Chem Sci, Jamshoro, Pakistan
[2] Univ Sindh, Dr MA Kazi Inst Chem, Jamshoro, Pakistan
[3] Univ Sindh, Ctr Excellence Analyt Chem, Jamshoro, Pakistan
来源：
ACTA CHROMATOGRAPHICA | 2011年 / 23卷 / 01期
关键词：
separation of uranium and thorium; MEKC; bis(acetylacetone)ethylenediamine; organic modifiers in CE; CAPILLARY-ZONE-ELECTROPHORESIS; DIRECT UV DETECTION; RARE-EARTH-ELEMENTS; METAL-IONS; SENSITIVE DETERMINATION; LANTHANIDES; COMPLEXES; CYANIDE; ACID; EDTA;
D O I：
10.1556/AChrom.23.2011.1.4
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A rapid and reliable analytical procedure has been developed for the separation and analysis of dioxouranium, thorium, gold, and mercury by micellar electro-kinetic chromatography (MEKC) using bis(acetylacetone)ethylenediamine (H(2)AA(2)en) as complexing reagent. Under the optimized conditions (64 mM borate buffer containing 12.25 mM SDS and 13% acetonitrile, pH 8.0, 25 kV, 311 nm as detection wavelength) the ions were separated within 5.0 min. Linear dynamic ranges were 1-5, 8-42, 10-50, and 2-40 mu g mL(-1), respectively, for gold, mercury, thorium, and uranium and the respective detection limits were 0.66, 3.33, 1.6, and 3.3 mu g mL(-1). The applicability of method has been evaluated by application to uranium and thorium from ore samples.
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页码：69 / 80
页数：12
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