Figure 3.

(A) Permeability, P_i, (B) total counterion partition coefficient, K_i, and (C) mobility, u_i, of counterions Cl⁻ and Br⁻ under single-counterion and mixed-counterion conditions. The permeabilities for mixed-counterion conditions were calculated from the measured initial concentration-normalized fluxes, the measured initial current during ED, and the membrane resistance measured in a 0.05 M/0.05 M mixed Cl⁻/Br⁻ solution. All bars are the average values from at least duplicate experiments, and error bars represent the standard deviation.