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. 2020 Aug 31;12(9):1976. doi: 10.3390/polym12091976

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© 2020 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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Differential pulse voltammetry (DPV) curves of (a) MOF525/PEpC modified microelectrode in ABS (pH = 5) with DA concentrations from 4 to 100 µM (Inset: linear dependence of the peak current against DA concentration), (b) detection of AA, UA and DA, respectively, and (c) stability of MOF525/PEpC modified microelectrodes in 10 cycles.

Differential pulse voltammetry (DPV) curves of (a) MOF525/PEpC modified microelectrode in ABS (pH = 5) with DA concentrations from 4 to 100 µM (Inset: linear dependence of the peak current against DA concentration), (b) detection of AA, UA and DA, respectively, and (c) stability of MOF525/PEpC modified microelectrodes in 10 cycles.