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. 2021 Dec 15;94(1):336–348. doi: 10.1021/acs.analchem.1c05065

Figure 1.

Figure 1

Schematic representation of electrochemiluminescent mechanism: (A) homogeneous where both coreactant and luminophore can be oxidized at the electrode surface and (B) heterogeneous where only coreactant is oxidized.