石油醚

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/石油醚溶液中锗的含量。

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

方法采用乙提取，石油醚脱脂，仿萃取，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、仿、石油醚为提取溶剂,提取中药材海金沙得到海金沙不同溶剂提取物,采用红外光谱(FT-IR)图谱鉴别法对提取物进行实验。