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.
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References
S. Motomizu, S. Nishimura, Y. Obata, H. Tanaka, Anal. Sci.7, 253 (1991).
S. Motomizu, M. Oshima, S. Matsuda, Y. Obata, H. Tanaka, Anal. Sci.8, 619 (1992).
A. R. Timerbaev, W. Buchberger, O. P. Semenova, G. K. Bonn, J. Chromatogr.630, 379 (1993).
W. Buchberger, O. P. Semenova, A. R. Timerbaev, J. High Resolut. Chromatogr.16, 153 (1993).
A. R. Timerbaev, W. Buchberger, O. P. Semenova, G. K. Bonn, in Ion Exchange Processes: Advances and Applications, A. Dyer, M. J. Hudson, P. A. William, eds., Royal Society of Chemistry, Cambridge, 1993, p. 111.
N. Iki, H. Hoshino, T. Yotsuyanagi, Chem. Lett. 701 (1993).
P. Jandik, G. K. Bonn, Capillary Electrophoresis of Small Molecules and Ions, VCH Publishers, New York, 1993; p. 298.
T. Saitoh, H. Hoshino, T. Yotsuyanagi, J. Chromatogr.469, 175 (1989).
H. Nishi, N. Tsumagari, S. Terabe, Anal. Chem.61, 2434 (1989).
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Timerbaev, A., Semenova, O. & Bonn, G. Metal ion capillary zone electrophoresis with direct UV detection: Comparison of different migration modes for negatively charged chelates. Chromatographia 38, 255–258 (1994). https://doi.org/10.1007/BF02290346
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DOI: https://doi.org/10.1007/BF02290346