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. 2015 Sep 10;20(9):16388–16403. doi: 10.3390/molecules200916388

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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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HPLC profiles of bioactive markers (a) gallic acid; (b) paeoniflorin and (c) fractions 2, 3, 4 and 5 of Cortex Moutan HSCCC extract. Detection was performed at UV 274 nm. Representative retention time peaks of the bioactive markers are highlighted in circle. Fractions 4 and 5 showed retention time peak similar to that of gallic acid (highlighted in circle).