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. 2016 Jun 9;12(2):904–910. doi: 10.3892/ol.2016.4698

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Copyright: © Lin et al.

This is an open access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.

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Figure 1. — High-performance liquid chromatography analysis of RPR and Cortex Moutan extracts. RPR and Cortex Moutan extracts were prepared using RPMI-1640 medium. The solvents for the standards are (A) ethanol (gallic acid and methyl gallate), methanol (paeoniflorin) and (B) RPMI-1640 medium. Peak 1, gallic acid; Peak 2, methyl gallate; Peak 3, paeoniflorin. Arrows indicate the peaks of gallic acid, methyl gallate and paeoniflorin in the two extracts. RPR, Radix Paeoniae Rubra.