Chen T, Li H, Zou D, Liu Y, Chen C, Zhou G, Li Y.  2016.  Separation of three anthraquinone glycosides including two isomers by preparative high-performance liquid chromatography and high-speed countercurrent chromatography from Rheum tanguticum Maxim. ex Balf Liquid Chromatography. J. Sep. Science Journal of Separation Science. 39(16):3105-3112.

Chen T, Li H, Zou D, Liu Y, Chen C, Zhou G, Li Y.  2016.  Separation of three anthraquinone glycosides including two isomers by preparative high-performance liquid chromatography and high-speed countercurrent chromatography from Rheum tanguticum Maxim. ex Balf. Journal of Separation Science. 39(16):3105-3112.

Chen T, Liu Y, Zou D, Chen C, You J, Zhou G, Sun J, Li Y.  2014.  Application of an efficient strategy based on liquid-liquid extraction, high-speed counter-current chromatography, and preparative HPLC for the rapid enrichment, separation, and purification of four anthraquinones from Rheum tanguticum. Journal of Separation Science. 37(1-2):165-170.