Abstract
An approach to choosing analyte preconcentration conditions for the subsequent capillary electrophoresis (CE) analysis of the concentrate was substantiated using the simultaneous determination of zinc(II) and cadmium(II) trace concentrations as an example. A CE procedure was developed for the determination of Zn and Cd with the following characteristics: The time of the analysis, including analyte preconcentration from a 50-mL sample, was 30 min. The analytical ranges were 0.01–0.2 mg/L for cadmium(II) and 0.005–0.1 mg/L for zinc(II).
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Original Russian Text © L.N. Moskvin, M.Ya. Kamentsev, G.L. Grigor’ev, N.M. Yakimova, 2010, published in Zhurnal Analiticheskoi Khimii, 2010, Vol. 65, No. 1, pp. 101–104.
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Moskvin, L.N., Kamentsev, M.Y., Grigor’ev, G.L. et al. Capillary-electrophoretic determination of zinc and cadmium ions in aqueous solutions with ion-exchange preconcentration. J Anal Chem 65, 99–102 (2010). https://doi.org/10.1134/S1061934810010193
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DOI: https://doi.org/10.1134/S1061934810010193