Metal ion capillary zone electrophoresis with direct UV detection: Comparison of different migration modes for negatively charged chelates |
| |
| Authors: | A Timerbaev O Semenova G Bonn |
| |
| Institution: | (1) Department of Analytical Chemistry, Johannes Kepler University, 4040 Linz, Austria;(2) Present address: Mendeleev Russian University of Chemical Technology, 125190 Moscow, Russian Federation |
| |
| Abstract: | Summary Several migration modes suitable for capillary zone electrophoretic (CZE) separation of metal ions in the form of 8-hydroxyquinoline-5-sulphonic acid complexes are described and compared. Superior analysis time, resolution, efficiency and detectability were achieved using reversed movement of anionic metal complexes (in the anode-to-cathode direction) under the action of the electroosmotic flow. This method allows the CZE analysis of multicomponent mixtures of transition metal ions as well as aluminium within about six minutes. |
| |
| Keywords: | Capillary zone electrophoresis Micellar electrokinetic chromatography Anionic metal chelates Direct UV detection Metal ion analysis |
| 本文献已被 SpringerLink 等数据库收录！ |
