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. 2015 Jan 8;15(1):1008–1021. doi: 10.3390/s150101008

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© 2015 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 license (http://creativecommons.org/licenses/by/4.0/).

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Figure 3. — (A) CV of CS-MWCNT hybrid film-modified MEA in pH 7.4 phosphate buffer with 50 μM DA and 100 μM 5-HT. Scan rate (a–e): 50 mV·s⁻¹, 70 mV·s⁻¹, 100 mV·s⁻¹, 200 mV·s⁻¹, 250 mV·s⁻¹; (B) Linear relationship between the oxidation peak current of DA with ν^1/2; (C) Linear relationship between the oxidation peak current of 5-HT with ν^1/2.