Chen, Cuiping Isolation of sutherlandins A, B, C and D from Sutherlandia frutescens (L.) R. Br. by counter-current chromatography using spiral tubing support rotors. [electronic resource] - Journal of chromatography. A Jul 2017 - 7-15 p. digital Publication Type: Evaluation Study; Journal Article ISSN: 1873-3778 Standard No.: 10.1016/j.chroma.2017.05.027 doi Subjects--Topical Terms: Countercurrent Distribution--instrumentationFabaceae--chemistryFlavonoids--analysisPlant Extracts--analysisPlants, Medicinal--chemistry