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目的:探讨紫花地丁软膏的制备和含量测定方法。方法:采用正交设计试验优化紫花地丁稠膏提取工艺,用紫外分光光度法对其主要成分黄酮进行含量测定。结果:紫花地丁稠膏最佳提取工艺为:提取2次、浸泡lh、时间1.5h、加水量12倍,黄酮在0.103～0.608mg/mL浓度范围内与吸收度线性关系良好,平均回收率98.33%,RSD=0.47%。结论:优选出的制备工艺合理,质量可控,结果稳定可靠。
Objective: To investigate the preparation and content determination of Vitexin ointment. Methods: Orthogonal design test was used to optimize the extraction process of Viola yedanchi, and its content of flavonoids was determined by UV spectrophotometry. Results: The optimal extraction process of the crude extract of Viola yedoensis was as follows: 2 times of extraction, soaking for 1 hour, 1.5 hours of time, 12 times of adding water, flavonoids had a good linear relationship with the absorbance within the range of 0.103 ~ 0.608mg / mL, 98.33%, RSD = 0.47%. Conclusion: The optimized preparation process is reasonable, the quality controllable, the result is stable and reliable.