1, The extraction and isolation of total Ginsenoside from American Ginseng's leave and flower were studied in this paper. The results showed that the efficiency of extraction is 80% with hot-water extracting and macroporous adsorption resins as affinity column. Extraction coeffient occupy 16.6% in dry leave and 32.5% in dry flower. Total Ginsenoside concentration is 68.029% in leave extraction and 85.015% in flower extraction. The correlation of equation were highly significant. Technology-combin...