Development of a Fast and Convenient Method for the Isolation of Triterpene Saponins from Actaea racemosa by High-speed Countercurrent Chromatography Coupled with Evaporative Light Scattering Detection - Cicek, Serhat Sezai; Schwaiger, Stefan; Ellmerer, Ernst Peter; Stuppner, Hermann (Planta Medica, 2010)