石油醚

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

本文采苯基荧光酮分光光度法测定仲辛/石油醚溶液锗的含量。

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

方法采提取，石油醚脱脂，氯仿萃取，上聚酰胺柱得到良姜素。

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、氯仿、石油醚为提取溶剂,提取海金沙得到海金沙不同溶剂提取物,采红外光谱(FT-IR)图谱鉴别法对提取物进行实验。