Conventional organic sample preparation methods, such as liquid-liquid extraction and solid phase extraction, are time and solvent consuming, and often involve several complicated procedures.

传统的有机物样品分析前处理方法主要有液-液萃取、固相萃取等方法，这些方法具有耗时长、操作繁琐、且需要大量有机溶剂等缺点。

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Now, in general, the produce of antibiotic is firstly extracted by clarification and solvent, and is separated from fermentation liquid and at last do the vacuum evaporation of the liquid extraction.

现代抗生素的生产一般首先是通过澄清和溶剂萃取从发酵液中加以分离，在对萃取液进行真空蒸发制得。

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Methods The extraction of anthraquinone from rhubarb was performed by liquid-liquid continuous biphasic extraction and this method was compared with 3 general solvent methods.

方法采用自制装置双相水解连续萃取法提取蒽醌衍生物，并和常用的3种溶剂法对比。

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