Table 2 Compound identification by RRLC-Q-TOF-MS in Fritillaria thunbergii and its adulterants (MS/MS CE 70 V)

    图2 12批浙贝母药材RRLC-Q-TOF-MS图

    Fig.2 RRLC-Q-TOF-MS fingerprint of 12 batches samples of Fritillaria thunbergii

    的主要活性成分，其含量高低可代表其质量优劣，因此根据主成分分析的结果，可发现第I组的6个样品质量要好于第II组的6个样品。

    表3 12批浙贝母药材共有峰相对保留时间

    Table 3 Relative retention time of common peaks for 12 batches of Fritillaria thunbergii

    表4 12批浙贝母药材共有峰相对峰面积

    Table 4 Relative peak area of common peaks for 12 batches of Fritillaria thunbergii

    图3 12批浙贝母样品的聚类分析图

    Fig.3 The results of dendrograms analysis for 12 batches of Fritillaria thunbergii

    图4 浙贝母主成分分析的载荷图

    Fig.4 Loading plots generated from PCA of Fritillaria thunbergii

    图5 浙贝母主成分分析的得分图

    Fig.5 Scores plots generated from PCA of Fritillaria thunbergii

    4 讨论

    贝母中甾体生物碱大多结构类似 ......