【摘要】 目的:采用粗糙集方法选取相关特征色谱峰用于黄芪药材的产地鉴别。方法:以不同产地黄芪药材高效液相色谱指纹图谱为研究对象,通过粗糙集方法对属性特征进行约简,选取与产地鉴别相关的特征峰,并用聚类分析对药材产地进行鉴别。结果:选取的相关特征峰鉴别能力强,未知样本的预测结果优于采用所有特征峰的预测结果。结论:基于粗糙集方法选取相关特征色谱峰可以作为鉴别依据用于黄芪药材的产地鉴别。更多还原

【Abstract】 Objective: Correlative characteristic peaks of HPLC selected by rough sets were employed to identify the habitats of Radix Astragali.Method: Using HPLC fingerprints of Radix Astragali sampled from different sources as examples,the reduct of attributes was achieved via rough sets,and therefore characteristic peaks correlated to identification of habitats were selected.Hierarchical cluster analysis was served for identifying the habitats of Radix Astragali.Results: The ability of identification only using correlative characteristic peaks is more powerful than the one of whole peaks collected from HPLC fingerprints,and satisfied prediction for unknown samples is achieved.Conclusion: Correlative characteristic peaks obtained from rough sets can be regarded as a distinctive foundation for identifying the habitats of Radix Astragali.更多还原