石油醚

Methods Galangin was extracted with ethanol, degreased with ligarine, and extracted with chloroform.

方法采用乙醇，石油醚脱脂，氯仿萃，胺柱得到高良姜素。

By using phenylfluorone photometer analysis,solution of germanium content in 2-octanol and petroleum was measured.

本文采用苯基荧光酮分光光度法测定仲辛醇/石油醚溶液中的含量。

Different solvent extractions of Spora Lygodii were obtained using methanol,chloroform and petroleum ether as medium.Experiments were carried out on them by FT-IR spectra.

以甲醇、氯仿、石油醚为溶剂,中药材海金沙得到海金沙不同溶剂,采用红外光谱(FT-IR)图谱鉴别法对进行实验。