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Yong‐Zhi Zhang Dong‐Zhi Wei Gui‐Xin Chou En‐Yuan Zhu 《Preparative biochemistry & biotechnology》2013,43(3):185-193
Abstract A flash chromatography method for preparative separation and purification of five hydroxyanthraquinones from the Chinese medicinal herb Rheum tanguticum Maxim. ex Balf. was developed by using Flash Master Personal+ systems. The purities of the products, chrysophanol, physcion, emodin, aloe‐emodin, and rhein were all over 90%, determined by high performance liquid chromatography (HPLC). Their structures were ascertained by EI‐MS, 1H‐ and 13C‐NMR data, and by co‐TLC and HPLC with the authentic samples available in our laboratory. 相似文献
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