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1·Petroleum ether extract content increased.

石油醚提取物含量有增加。

2·Mainly by tobacco bud extract petroleum ether extract obtained tobacco bud extract.

烤烟花蕾浸膏主要是通过石油醚浸提烤烟花蕾制得浸膏。

3·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。

4·With ethanol and other organic solvents miscible, insoluble in water and petroleum ether.

能与乙醇等一般有机溶剂混溶，不溶于水和石油醚。

5·From the 35% EtoAc-petroleum ether portion 1-0-hexanoyl-glycerol ester(12) were isolated.

从35％乙酸乙酯—石油醚部分分离得到了十六碳酸甘油酯（12）。

6·It is soluble in such organic solvents as acetone, ethylether or petroleum ether instead of water.

易溶于丙酮、 或石油醚等有机溶剂，不溶于水。

7·Petroleum Ether that is defined is the suitable solvent according to the choice solvent experiment.

通过对提取溶剂的选择实验得出了提取茄尼醇的最佳溶剂（石油醚）。

8·The yield of petroleum ether extractives from the crowns of C. lanceolata was 5 4% of its dry weight.

杉木绿冠的石油醚提取物得率，为其绝干重量的5．4％。

9·It was found that both n-hexane and petroleum ether were good solvent for ultrasonic-assisted process.

结果表明，正己烷和石油醚作提取溶剂效果较好。

10·Degreasing treatment with petroleum ether is a common step in extracting processing of plant flavonoids.

石油醚除脂处理是目前植物黄酮类物质提取中常用的处理环节。