Multiplexing
Mapping local electrochemistry
SEED provides a unique and highly desired solution to quantify multiple electrochemical reactions on a monolith electrode. The local oxidation and reduction reaction on an electrode is measured by scanning a laser beam on the electrode. An application of multiple reaction on a monolith electrode is shown in Microarray Chip application.
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Video: The laser beam is illuminated on an electrode spot to acquire local electrochemical reaction. The acquired data of oxidation and reduction peaks are shown in real-time as the cyclic potential is applied.
Typical SEED signal from local electrochemical reaction. The signal is averaged over 10 potential ramps from -0.4 to 0.1 V. The peaks correspond to oxidation and reduction currents. The average location of the peak is the thermodynamic redox potential, ERP.