Overview: The Division clouds extract of tobacco from Yunnan mainly as raw materials extracted by petroleum ether extract obtained in Yunnan tobacco.
概述：本司云烟浸膏主要采用云南产的烟叶为原材料，通过石油醚浸提云南地区烟叶制得浸膏。
This paper studied on oat oil from deshelled oat seeds by petroleum ether extraction.
本课题以脱壳燕麦为原料，经石油醚提取得到燕麦油。
Methods the extracted liquid with petroleum ether from the geochemical samples in the north of Shaanxi was spectrally analyzed by using the optimized measurement condition.
方法用优化后的条件对陕北地区化探样品中芳烃的石油醚萃取液进行了光谱分析。
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