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.

引用

页码：69 / 80

页数：12