彝药翻白草和牛口刺的红外及热分析鉴别

Infrared and Thermal Analysis Identification of Cirsium shansiense Petrak and Potentilla discolor Bunge

[目的]建立翻白草和牛口刺药材的鉴别方法。[方法]使用红外光谱仪和差热-热重分析仪对翻白草和牛口刺进行红外指纹图谱和TG-DTG曲线分析。[结果]翻白草和牛口刺药材的红外指纹图谱和TG-DTG曲线具有各自不同的特征。[结论]所得翻白草和牛口刺药材的红外特征指纹图谱和TG-DTG曲线可用于鉴别翻白草和牛口刺药材。

[Objective] To establish identification methods for Cirsium shansiense Petrak and Potentilla discolor Bunge.[Method] IR fingerprint and TG-DTG curve analyses of C.shansiense and P.discolor were conducted by infrared spectrometer and TG-DTG.[Result] IR fingerprint and TG-DTG curve of C.shansiense and P.discolor had different characteristics.[Conclusion] The IR fingerprint and TG-DTG curve could be used for the identification of C.shansiense and P.discolor.