The extraction and separation of active components from Chinese medicinal herbs at high efficiency is one of the key research topics today. This study was carried out to broaden the use of Aslralagus mongolicus as well as to discover its new effective components. Major conclusions are as follow:1. Extraction and separation of Astragalus polysaccharide (APS)Dynamic analysis on the extraction process of Astragalus polysaccharide (APS) showed that double aqueous extraction at 60 min and 70 min was able to extr...