分别合并萃 取液，置于圆底烧瓶中，旋转蒸发去除溶剂，分别得 石油醚萃取物(petroleum ether fraction，PEF)、乙酸乙 酯萃取物(ethyl acetate fraction，EAF)、正丁醇萃取物 (n-bu...
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In the petroleum ether fraction, the amount of fatty acid methyl esters was about 68.42%.
在石油醚萃取部位中脂肪酸甲酯约占总量的68.42%。
Another part is about the separating from the Petroleum ether fraction of Selaginella uncinata (Desv. ) Spring.
另一部分是对瑶药翠云草石油醚萃取部位化学成分进行分离。
The further bioassays results suggested that the active constituents of F. vasculosa leaves existed in petroleum ether fraction and EtOAc fraction.
生物测定结果表明，白肉榕叶的活性成分主要存在于石油醚萃取物和乙酸乙酯萃取物中。
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