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. 2020 Mar 12;25(6):1297. doi: 10.3390/molecules25061297

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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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The analysis of fluorescence quenching data for A-peak of the FA5-Zn(II) system at pH 3–7. (A) fluorescence quenching profiles with Zn(II) increase; (B) Stern–Volmer plots; (C) modified Stern–Volmer plots; (D) double logarithmic plots.