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

被引：9

作者：

Mallah, A. ^{[2
]}

Memon, S. Q. ^{[1
]}

Solangi, A. R. ^{[3
]}

Khuhawar, M. Y. ^{[1
]}

Bhanger, M. I. ^{[3
]}

机构：

[1] Univ Sindh, Inst Adv Res Studies Chem Sci, Jamshoro, Pakistan

[2] Univ Sindh, MA Kazi Inst Chem, Jamshoro, Pakistan

[3] Univ Sindh, Ctr Excellence Analyt Chem, Jamshoro, Pakistan

来源：

ACTA CHROMATOGRAPHICA | 2010年 / 22卷 / 03期

关键词：

separation of uranium and thorium; MEKC; bis(acetylacetone) ethylenediamine; organic modifiers in CE; CAPILLARY-ZONE-ELECTROPHORESIS; RARE-EARTH-ELEMENTS; METAL-IONS; SENSITIVE DETERMINATION; COMPLEXES; LANTHANIDES; ACID; EDTA;

D O I：

10.1556/AChrom.22.2010.3.5

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A fast and reliable analytical procedure has been developed for separation and analysis of dioxouranium, thorium, gold, and mercury by micellar electrokinetic 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 7.99; 25 kV; detection wavelength 311 nm), other ions present were separated within 5 min. Linear dynamic ranges 1-5, 8-42, 10-50, and 2-40 mu g mL(-1) and detection limits 0.66, 3.33, 1.6, and 3.3 mu g mL(-1), respectively, were achieved for gold, mercury, thorium, and uranium. The applicability of method was evaluated by analysis of uranium and thorium in ore samples.

引用

页码：405 / 417

页数：13

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