| abstract |
The present invention relates to a process of preparation of a biosensor comprising forming an electrode system mainly containing carbon on an insulating base plate, treating the surface of electrode system with an organic solvent, and then arranging a reaction layer on the electrode system to give a unified element. The reaction layer contains an enzyme, electron acceptor and a hydrophilic polymer. Treatment with the organic solvent improves adhesion of the reaction layer to the electrode system. The electrode system contains a working electrode and a counter electrode. The electrode system is formed from a carbon paste containing a resin binder. Treatment is preferably carried out by wiping the surface of the electrodes with a material impregnated by the organic solvent. |