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. 2018 Dec 1;10(12):1329. doi: 10.3390/polym10121329

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© 2018 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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(a) DPV peak current response of RGO/Fe₃O₄-IL-MIP sensor after incubating in 20 μM DPA and its analogs (n = 3). (b) DPV peak current response of RGO/Fe₃O₄-IL-MIP sensor after incubating in 20 μM DPA and 20 μM DPA in the presence of other analogs (n = 3). (c) The chemical structures of DPA (a’) and its analogs of 2-nitroaniline (b’), 3-nitroaniline (c’), 4-nitroaniline (d), benzene (e), 1,2-dimethylbenzene (f), 1,4-phenylenediamine (g), hydroquinone (h), catechol (i), 1-naphthylamine (j), and phenol (k).