Study on extraction technology of Rhei Radix et Rhizoma by microwave pressure Evaluation on intestinal absorption of alkaloids extracted by different methods from Rhizoma Coptidis-Rheum rhabarum herbal pair via everted gut sacs Quality control of Xiaochengqi Decoction Influence of prescription compatibility on extraction rate of 15 constituents in Yinchenhao Decoction Quality control of Xiaochengqi Decoction Study on packaging methods for Rhei Radix et Rhizoma Study on drying methods of Rhei Radix et Rhizoma Advance in studies on effect of Glycyrrhizae Radix et Rhizoma in relieving purgative activity of Rhei Radix et Rhizoma Speciation analysis of harmful elements in Rhei Radix et Rhizoma, Chrysanthemi Flos Study on dissolution of four alkaloid contents in compatability of Coptidis Rhizoma and Rheui Radix et Rhizoma based on compatability ratio and pH value environment by quantitative analysis of multi-components by single marker Study on extraction technology of Rhei Radix et Rhizoma by microwave pressure Study on preparation of silver nanoparticles by biomass reduction of traditional Chinese medicinal materials and their antibacterial activity Effects of compatible herbs and pH value conditions on change rule of anthraquinones in Rhei Radix et Rhizoma