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Dr. Alexander Oleinick, Feng Zhu, Dr. Jiawei Yan, Prof. Dr. Bingwei Mao, Prof. Dr. Irina Svir  and Prof. Dr. Christian Amatore Theoretical Investigation of Generator–Collector Microwell Arrays for Improving Electroanalytical Selectivity: Application to Selective Dopamine Detection in the Presence of Ascorbic Acid ChemPhysChem 14

Article first published online: 10 APR 2013 | DOI: 10.1002/cphc.201300134

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Well separated: A microwell array integrating collector–generator amplification into a diffusional faradaic cage virtually eliminates irreversible redox interferences, for example, in dopamine (DA) detection in the presence of ascorbic acid (AA). Thus, AA is scavenged but DA enters the nanocavities for oxidation at the disk electrodes, and its signal is further amplified by redox cycling (see picture).

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