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西伯利亚铁线莲Atragene sibirica L.地上部分风干后磨成粉末,用25％乙醇在80 C水浴中加热提取2 h。提取物真空浓缩为暗褐色粘稠物质,水分不超过25％,其总
The aerial parts of Siberian Clematis Atragene sibirica L. were air-dried, ground into powder and heated with 25% ethanol in an 80 C water bath for 2 h. The extract is concentrated in vacuo to a dark brown viscous material with no more than 25% moisture.