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. 2014 Jul 30;14(8):13863–13912. doi: 10.3390/s140813863

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© 2014 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/3.0/).

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Figure 7. — Influence of pH on the sensor response during determination of vanillin in food samples (Data from [306]).