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目的:验证中国药典蒲黄薄层鉴别方法。方法:以异鼠李素、异鼠李素-3-O-新橙皮苷、香蒲新苷为对照品,按照中国药典蒲黄项下薄层鉴别方法以及改良的方法,对蒲黄药材进行了鉴别。结果:药典方法操作繁琐,耗时较长,并且误将异鼠李素的氧化分解产物作为异鼠李素对照品,用于鉴别药材中含有的异鼠李素。改进的方法专属性强、操作简便,为蒲黄的鉴别提供了一种准确、有效的新方法。结论:中国药典蒲黄的薄层色谱鉴别方法应及时进行修订,保证检验结果的准确可靠。
Objective: To verify the identification method of Puhuang thin layer in Chinese Pharmacopoeia. METHODS: Isohamnetin, isorhamnetin-3-O-neohesperidin, and tyloside were used as the reference substance. According to the thin layer identification method and the modified method in the Chinese Pharmacopoeia Puhuang, the Puhuang medicinal materials were tested. The identification. Results: The pharmacopoeia method was cumbersome and time consuming, and the oxidative decomposition product of isorhamnetin was mistakenly used as a reference substance for isorhamnetin to identify isorhamnetin contained in medicinal materials. The improved method is highly specific and easy to operate, providing an accurate and effective new method for the identification of Puhuang. Conclusion: The TLC identification method for Puhuang of Chinese Pharmacopoeia should be revised in time to ensure the accuracy and reliability of the test results.