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目的:建立和探索对阿胶及中药材既从整体上表征,又有定性又有量化指标的检定方法。方法:选择5个不同来源的阿胶样品与阿胶对照品进行对比分析。结果:XRF可对其宏量和微量元素的种类和含量进行测定,PXRD可对含有晶态物质的伪品阿胶进行鉴别。结论:2种方法的联合应用可以从整体上对阿胶的元素指标和化合态这两方面进行质量控制和鉴别。这2种方法在阿胶、中药材及其饮片的检定标准制定方面具有较好的应用前景。
OBJECTIVE: To establish and explore a method for the verification of both gelatin and Chinese herbal medicines as a whole, as well as qualitative and quantitative indicators. Methods: Five different sources of donkey-hide gelatin samples were compared with donkey-hide gelatin reference substance. Results: XRF was used to determine the types and contents of its macroscopic and trace elements. PXRD was used to identify the fake gelatin containing crystalline substances. Conclusion: The combination of the two methods can be used to control and identify the quality of Ejiao from two aspects. These two methods have good application prospects in the development of standards for the determination of donkey-hide gelatin, Chinese herbal medicines and their decoction pieces.