title: Membrane potentials and ion permeability in a cation exchange membrane.
abstract: The nonequilibrium electrical potentials across an artificial membrane bathed by solutions of a single salt have been measured and calculated using the Goldman-Hodgkin-Katz equation and the irreversible thermodynamic equation. The latter equation predicts the observed potential differences over a 2500-fold concentration range, while application of a modified Goldman-Hodgkin-Katz equation leads to difficulties.
mesh_terms: D001692:Biological Transport; D002713:Chlorine; D007475:Ion Exchange Resins; D007700:Kinetics; D008433:Mathematics; D008564:Membrane Potentials; D008567:Membranes, Artificial; D008954:Models, Biological; D010539:Permeability; D011137:Polystyrenes; D011868:Radioisotopes; D012965:Sodium Chloride; D012975:Sodium Isotopes; D013451:Sulfonic Acids; D013816:Thermodynamics
chemical_list: D007475:Ion Exchange Resins; D008567:Membranes, Artificial; D011137:Polystyrenes; D011868:Radioisotopes; D012975:Sodium Isotopes; D013451:Sulfonic Acids; D012965:Sodium Chloride; D002713:Chlorine