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. 2018 Apr 18;23(4):937. doi: 10.3390/molecules23040937

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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,d) Effect of contact time on the adsorption capacity of GTF; (b,e) Effect of pH on the adsorption capacity of GTF; (c,f) Effect of ionic strength on the adsorption capacity of GTF.