Isolation of flavonoids from Spatholobus suberectus by high speed countercurrent chromatography and study on their anti-tumor activities Isolation of flavonoids from Spatholobus suberectus by high speed countercurrent chromatography and study on their anti-tumor activities Selection of solvent system for high speed countercurrent chromatography in separation of natural products Separation and purification of tanshinone from Salvia miltiorrhiza by combination of silica gel and high-speed counter-current chromatography Isolation and purification of alpinetin and cardamomin from Alpinia katsumadai by high speed counter-current chromatography Application of high-speed counter-current chromatography in separation and purification for alkaloids in natural products Isolation and purification of polymethoxylated flavonoids from Pericarpium Citri Reticulatae by high-speed counter-current chromatography Isolation and purification of alpinetin and cardamomin from Alpinia katsumadai by high speed counter-current chromatography Separation and purification of tanshinone from Salvia miltiorrhiza by combination of silica gel and high-speed counter-current chromatography MICROWAVE EXTRACTION AND HSCCC ISOLATION AND IDENTIFICATION OF CHLOROGENIC ACID IN Eucommia ulmoides LEAVES Separation and purification of bilobalide and ginkgolides A, B, and C from Ginkgo biloba leaves by high-speed counter-current chromatography Isolation and purification of gelsenicine and gelsevirine from Gelsemium elegans by high-speed counter-current chromatography Application of high-speed counter-current chromatography in separation and purification for alkaloids in natural products Preparation of Kushen Alkaloids by HSCCC——Optimization of Chromatographic and Instrumental Parameters