Metal ion speciation and capillary electrophoresis: Application in the new millennium

Metal ions are essential for human beings at low concentrations but they are toxic or even carcinogenic at high concentrations. Many metallic ions are found in the environment in different species which are differentiated not only by their physicochemical forms but also by their diverse toxicities w...

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Bibliographic Details
Published in:Electrophoresis 2005-11, Vol.26 (21), p.3988-4002
Main Authors: Ali, Imran, Gupta, Vinod K., Aboul-Enein, Hassan Y.
Format: Article
Language:English
Subjects:
Capillary electrophoresis
Electrophoresis, Capillary - instrumentation
Electrophoresis, Capillary - methods
Environmental Pollutants - analysis
Equipment Design
Ions - analysis
Ions - chemistry
Metal ions
Metals - analysis
Metals - chemistry
Review
Speciation
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Summary:Metal ions are essential for human beings at low concentrations but they are toxic or even carcinogenic at high concentrations. Many metallic ions are found in the environment in different species which are differentiated not only by their physicochemical forms but also by their diverse toxicities with respect to living organisms (speciation). CE has been used for metal ion speciation. The present review article describes the recent trends in metal ion speciation by CE. This article deals with the speciation of metal ions, optimization of the speciation (by independent and dependent variables), hyphenation of CE, validation of the methods, mechanisms of speciation, CE versus chromatography and conclusions.
ISSN:0173-0835
1522-2683
DOI:10.1002/elps.200500216