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在中草药有效成分提取中,常常遇到要将庞大体积的提取液加以浓缩。最常用的方法就是减压浓缩,通常都是在1000毫升以下的减压容器内进行的。但是,如此小的容器,若以5000毫升的提取液被浓缩至500毫升为例来讲,那就需要反复装拆仪器10次以上。这样,手续就不胜其繁。为此,这里介绍一个“简易的减压浓缩连续操作方法”。这个方法的特点在于方便、连续,不用反复装拆仪器。
In the extraction of the active ingredients of Chinese herbal medicine, it is often encountered to enrich the huge volume of extract. The most common method is to concentrate under reduced pressure, usually in a pressure vessel below 1000 ml. However, for such a small container, if the sample is concentrated to 500 ml with 5000 ml of extract solution, the instrument needs to be repeatedly attached and detached more than 10 times. In this way, the procedures are numerous. To this end, here is a description of “a simple method of continuous operation of vacuum condensation.” This method is characterized by convenient, continuous, without repeated assembly and disassembly of the instrument.