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. Author manuscript; available in PMC: 2021 Jun 1.
Published in final edited form as: Anal Methods. 2019 Feb 19;11(12):1620–1630. doi: 10.1039/c8ay02737d

Figure 1:

Figure 1:

Schematic of DOPAC Oxidation. Similar to dopamine, DOPAC is also a catechol that undergoes reversible oxidation and reduction in a two-electron transfer. Unlike dopamine, DOPAC contains a carboxyl group instead of an amine and is negatively charged at a physiological pH.