International Journal of Chemical Science

A simple chromatographic separation method has been developed for quantitative sorption of Beryllium(II) from an aqueous solution of 1×10^-3M Glycine using poly [dibenzo-18-crown-6] as stationary phase. The sorption of Beryllium (II) was quantitative 1×10^-3M to 1×10^-8M Glycine. The elution of Beryllium (II) was quantitative with 0.1–8.0 M HCl, 3.0-8.0M HBr and 7.0-8.0 M H2SO4. The capacity of poly [dibenzo-18-crown-6] for Beryllium (II) was found to be 0.65 ± 0.01 mmol/g of crown polymer. The effects of concentrations of Glycine, Beryllium (II), foreign ions and eluents have been studied. Beryllium (II) was separated from a number of cations in multicomponent mixtures. The applicability of the proposed method was ascertained for the determination of Beryllium (II) in real samples. The reliability of method was checked by comparison of the results with those obtained using flame photometer. The method is very simple, rapid and selective with good reproducibility (approximately±2%).

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