Inventors:
Bruce Burgess - Ann Arbor MI
Mark Meyerhoff - Ann Arbor MI
Peter H. Burleigh - Ann Arbor MI
John Ellison - Whitmore Lake MI
Christine A. Smith - Ann Arbor MI
Assignee:
Mallinckrodt Sensor Systems, Inc. - Ann Arbor MI
International Classification:
G01N 2726, G01N 2730
Abstract:
An electroanalytical electrode assembly includes an electrically conductive working electrode having a body of electrolyte material thereupon and separated from the analytical environment by a hydrophobic membrane. The membrane has an electrical conductivity greater than the electrical conductivity of the remainder of the measuring circuit and is selectably permeable for a preselected and ionic species, so as to provide a stable membrane potential. Use of an assembly of this type allows for placement of a reference electrode external of the membrane.