Abstract
The selective adsorption resins for Ge (IV) with the 1, 2-diol type ligands were prepared by the amination of a chloromethylated styrene-divinylbenzene beads with 3-dimethylamino-1, 2-propanediol (3DMA-PD), 3-diethylamino-1, 2-propanediol (3DEA-PD) and 3-amino-1, 2-propanedio l (3A-PD). Ge (IV) was adsorbed on these resins from the neutral or alkaline solutions. The 3DMA-PD and 3DEA-PD resins exhibited the adsorption capacities for Ge(IV) at 1.14 and 0.98 mmolg-1, resp ectively, whereas the 3A-PD resin showed the lower capacity at 0.65 mmol g-1. The breakthrough capacities of the columns packed with 2 cm3 of these resins were evaluated by loading the various buffered solutions of Ge (1V). The Ge (IV) adsorbed in the column was eluted completely with dilute hydrochloric acid.
