Fig. 3From: Modeling and equilibrium studies on the recovery of praseodymium (III), dysprosium (III) and yttrium (III) using acidic cation exchange resinSEM images of, a Dowex 50WX8 before sorption process, b after sorption of Pr(III), c after sorption of Dy(III), d after sorption of Y(III) from nitrate mediumBack to article page