Methods the chemical compositions of the petroleum ether extracts were isolated and purified by chromatographic methods. The structure of acquired compounds was identified by spectrum method.

方法采用多种色谱方法对其含有的化合物进行分离纯化，利用波谱法对得到的化合物进行结构鉴定。

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Commercially available sodium lauryl sulfate was purified by such methods as recrystallization of water, recrystallization of ethanol and extraction of ethyl ether.

介绍了用两种不同的方法制备十二烷基硫酸钠，并对制备出的产物的性能与分析纯的标样进行了比较。

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