Patent ID: 8382968

Claim:
An electrochemiluminescent analytical device comprising: a working electrode of a material; a solid porous film on or adapted to be movable onto the working electrode; and a scaffold, wherein: the material of the working electrode is a conductor or a strongly doped semiconductor which is covered by an electrical insulator layer, the working electrode of the device is propped to the scaffold, through which the working electrode can be connected to excitation electronics of a luminescence measurement instrument, the working electrode serves as a cathode of the device, the solid porous film is liquid-permeable and of a thickness less than 100 μm, wherein the solid porous film is located in the vicinity of the working electrode, but not in direct contact with the working electrode, a free liquid junction of less than 100 μm exists between the working electrode and the porous film, the device being adapted so that a sample and other reagents to be brought onto the porous film and/or cathode can react with each other.