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1.在中草药整理提高工作中,经常遇到的问题是如何分离未知混合成分。“纸层先导设计法”可为总成分的分离工作(液、液萃取)设计出较精确的方案。做到:想要分离哪些成分或组分,实践结果就能较好地分出这些成分或组分。而且分离纯度也将按予先的设计要求给以实现。 2.纸层先导设计法的基本原理和设计步骤:“纸层先导设计法”,就是先进行纸层析实验,并以纸层析结果及其计算数据作指导,设计液、液萃取的实验方案。本设计法依据的基本原理是:纸层析在本质上属于分配层析,它和液、液萃取法分离物质的机理是相同的。
1 in the improvement of Chinese herbal medicine work, the problem often encountered is how to separate the unknown mixture of ingredients. “Paper Pilot Design” can design a more accurate solution for the separation of the total composition (liquid, liquid extraction). Do: what components or components you want to separate, the results can be better practice to separate these components or components. And the separation of purity will also be given prior to the design requirements to achieve. 2. The basic principles and design steps of paper-based pilot design method: “paper-based pilot design method” is the first paper chromatography experiment, and paper chromatography results and calculation data for guidance, design of liquid and liquid extraction experiments Program. The basic principle of this design method is based on: Paper chromatography in essence belongs to the distribution of chromatography, and liquid and liquid extraction of the material is the same mechanism.