Elution behavior for a large sample size of uranyl ions on reversed-phase columns using alpha-hydroxyisobutyric acid as an eluent.

Large sample sizes of uranyl ions are eluted on a strenedivinylbenzene copolymer phase and an octadecyl phase column, respectively, using alpha-hydroxyisobutyric acid (alpha-HiBA) as an eluent. Chromatograms are obtained from variations of the uranyl sample amounts, eluent concentrations, concentrations of the sample matrix, and the pH of the sample solution for both columns, respectively. Column capacities are estimated from the loading factors measured from the retention times of the peaks.