E. Dabekzlotorzynska et al., CAPILLARY ELECTROPHORESIS - THE STATE-OF-THE-ART IN METAL SPECIATION STUDIES, Analytica chimica acta, 359(1-2), 1998, pp. 1-26
An overview of the state-of-the-art of capillary electrophoresis (CE)
for metal speciation analysis is presented. Various CE separation appr
oaches and detection modes applied are discussed. A comprehensive desc
ription of reported methods to date in CE speciation studies of indivi
dual metals in different oxidation states, metal complexes with inorga
nic and organic ligands, oxoanions and organometallic compounds is dem
onstrated. The potential of CE for characterisation of metal interacti
ons with large molecules like humic substances and proteins is also de
scribed. Several examples are presented to demonstrate CE's ability to
solve real-world speciation problems. Further, the current strengths
and limitations of CE with regard to speciation studies are discussed.
The performance of CE is also critically evaluated in relationship to
conventional chromatographic techniques used in metal speciation dete
rmination. (C) 1998 Elsevier Science B.V.