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目的:确定咽炎含片最佳提取工艺。方法:采用正交试验方法,以黄芩苷含量为检测指标,以水提醇沉为提取制备方法,考察各因素的影响。结果:最佳工艺如下:加入的水量为10倍,提取次数为3次,提取时间为1h。合并滤液,浓缩至浓度为1.1g·ml~(-1),加乙醇使含醇量为60%沉淀,静置18h。结论:该法提取效率高,稳定性好。
Objective: To determine the best pharyngitis tablets extraction process. Methods: Orthogonal test method, the content of baicalin as a detection index, water extraction and alcohol precipitation as extraction preparation methods to examine the impact of various factors. Results: The best process is as follows: 10 times the amount of water added, the number of extraction was 3 times, the extraction time was 1h. The filtrate was combined and concentrated to a concentration of 1.1 g · ml ~ (-1), ethanol was added to make the alcohol content of 60% precipitate, allowed to stand for 18h. Conclusion: This method has high extraction efficiency and good stability.