Figure 2.

Selectivity coefficients, $log{K}_{\text{Ag},\text{J}}^{\text{pot}}$, for ISE membranes with perfluoroperhydrophenanthrene doped with 1.0 mM borate salt 3 and one of the four ionophores Ag-1, Ag-2, Ag-3, or Ag-4 (3.0 mM). For comparison, the selectivities for a fluorous ionophore-free ion-exchanger membrane made of 1.0 mM borate salt 3, in perfluoroperhydrophenanthrene are shown on the left.