| 20110213229 | ELECTRODE, ELECTROCHEMICAL SENSOR AND APPARATUS, AND METHODS FOR OPERATING THE SAME - A method for amperometric detection of proteins, especially haemoglobin in faeces, using an electrochemical sensor. The electrochemical sensor includes: a working electrode having an electrically conductive matrix holding a first reagent and/or a second reagent, the second reagent being an oxidising agent, or a precursor thereof, for the first reagent; a counter electrode and optionally a reference electrode; wherein a reaction between the first reagent and the oxidising agent is catalysed by the protein to provide a detectable signal at the working electrode. The electrically conductive matrix is an electrically conductive carbon- or graphite-containing matrix or an electrically conductive porous matrix. | 09-01-2011 |
