A method of inhibiting translocation of an eluent through an ion exchange barrier of an ion exchange chromatography system, the method comprising: applying a voltage or current across a first electrode and a second electrode, the voltage or current having a first polarity, the first electrode being disposed on a first side of the ion exchange barrier, wherein the first electrode is in electrical communication with a liquid ion source disposed in an ion source reservoir at the first side of the ion exchange barrier, eluent counter ions being disposed in the liquid ion source, the second electrode being disposed on a second side of the ion exchange barrier, wherein the second electrode is in electrical communication with an aqueous liquid disposed in an eluent generation chamber at the second side of the ion exchange barrier, the applied voltage or current with the first polarity electrolytically generating eluent ions at the second electrode and generating a first electric field to promote the translocation of eluent counter ions towards the second electrode and through the ion exchange barrier from the first side to the second side, wherein the eluent counter ions and eluent ions combine to form the eluent; and selectively reversing the polarity of the voltage or current from the first polarity to a second polarity to generate a second electric field that inhibits translocation of eluent in the liquid ion source towards the second electrode and through the ion exchange barrier from the first side to the second side; wherein the voltage or current having the first polarity is applied while flowing the aqueous liquid through the eluent generation chamber; characterized in that the voltage or current having the second polarity is applied while the flow of the aqueous liquid through the eluent generation chamber is stopped. applying a voltage or current across a first electrode and a second electrode, the voltage or current having a first polarity, the first electrode being disposed on a first side of the ion exchange barrier, wherein the first electrode is in electrical communication with a liquid ion source disposed in an ion source reservoir at the first side of the ion exchange barrier, eluent counter ions being disposed in the liquid ion source, the second electrode being disposed on a second side of the ion exchange barrier, wherein the second electrode is in electrical communication with an aqueous liquid disposed in an eluent generation chamber at the second side of the ion exchange barrier, the applied voltage or current with the first polarity electrolytically generating eluent ions at the second electrode and generating a first electric field to promote the translocation of eluent counter ions towards the second electrode and through the ion exchange barrier from the first side to the second side, wherein the eluent counter ions and eluent ions combine to form the eluent; and the first electrode being disposed on a first side of the ion exchange barrier, wherein the first electrode is in electrical communication with a liquid ion source disposed in an ion source reservoir at the first side of the ion exchange barrier, eluent counter ions being disposed in the liquid ion source, the second electrode being disposed on a second side of the ion exchange barrier, wherein the second electrode is in electrical communication with an aqueous liquid disposed in an eluent generation chamber at the second side of the ion exchange barrier, the applied voltage or current with the first polarity electrolytically generating eluent ions at the second electrode and generating a first electric field to promote the translocation of eluent counter ions towards the second electrode and through the ion exchange barrier from the first side to the second side, wherein the eluent counter ions and eluent ions combine to form the eluent; and selectively reversing the polarity of the voltage or current from the first polarity to a second polarity to generate a second electric field that inhibits translocation of eluent in the liquid ion source towards the second electrode and through the ion exchange barrier from the first side to the second side; wherein the voltage or current having the first polarity is applied while flowing the aqueous liquid through the eluent generation chamber; characterized in that the voltage or current having the second polarity is applied while the flow of the aqueous liquid through the eluent generation chamber is stopped.