SEARCH Articles Figures Tables Extract phase Extractants separation Extraction , separations Extraction and Separations Extraction membranes Extraction system Extractive separations Ion Separations in Membrane and Solid Ion extractants Ion membranes Ion separations Ions in solids Izatt Membrane separation system Membranes solid Membranes solid-phase extraction Phase extraction Phase separation in membranes Phase separation membranes Phase-separable system Separable systems Separated ions Separator and Membrane Solid phase extraction system Solid phase systems Solid systems Solids separating Solids separation