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。
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。
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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