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The influence of the concentration of dimethylaminomethylated calix[4]resorcinolarene I, pH, supporting electrolyte, and additions of 1,10-phenanthroline to the organic phase on the distribution of Eu(III) and Am(III) between the aqueous and organic phases was studied. Compound I extracts Am and Eu ions from neutral aqueous solutions more efficiently when dissolved in 1-heptanol, compared to dichloroethane...
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