Abstract
Separation of the steroidal components of I-tiam-hong (Nervilia purpurea SCHLECHTER and Nervilia aragona GAUD) and Cordyceps sinensis (BEAK.) SACC., was effectively achieved by reversed-phase high-performance liquid chromatography (HPLC). It was found that HPLC is of great value for the separation and identification of each sterol from complex mixtures.