Study of Co2-Supercritical Fluid Extraction（SFE） of Constituents in ＂Seng-ldeng＂ （SD）, a Traditional Tibetan Medicine

摘要

This new, recently developed extracting techniqne, Supercritical Fluid Extraction (SFE), features many advantages in natural product extraction, such as a satisfactory rate of extraction, a high isolation effect, and, when operated entirely free of residual solvents, low cost.