
57-11Kinetic Composition Measurement
for some species, the electrode reaction kinetics may be very slow. A simple example is the reduction
of molecular oxygen (O
2
) at bare Pt electrodes in an aqueous solution. Oxygen cannot be reduced at
the thermodynamic potential of the electrode. In this case, one can apply a large overpotential to drive
the O
2
reduction. Unfortunately, in many cases, a large overpotential cannot be used because of
the limited available potential window or because of the interference from other electroactive species.
Step 2: Protein-A coating
Step 3: Antibody immobilization
Step 4: Enzyme attachmentStep 5: PCB incubation
Reagent ...