Patent ID: 6872297

Claim:
A method for restoring the functional properties of an electrochemical sensor, said method comprising: providing an electrochemical sensor system, said electrochemical sensor system comprising: an electrochemical sensor card comprising at least one electrochemical sensor, said electrochemical sensor comprising an electrode and a composite membrane said composite membrane comprising at least one polymeric membrane; an electrochemical sensor apparatus in electrical contact with the electrochemical sensor card, the electrochemical sensor apparatus configured to measure electrical signals from the electrochemical sensor card and to provide an electrical potential to the electrochemical sensor; and a reservoir containing an electropolymerizable monomer in a solution in fluid communication with the electrochemical sensor card; contacting the electrochemical sensor with the solution; and applying an electrical potential of sufficient strength and sufficient duration to cause at least a portion of the electropolymerizable monomer in the solution to polymerize onto the polymeric membrane.