1·OBJECTIVE To determine the trace elements in Fructus Arctii of the different origins.
目的测定不同产地牛蒡子的微量元素含量。
2·Methods: Correlation analysis, Grey incidence analysis were used for the quality evaluation of Fructus Arctii in different places.
方法：使用相关分析、灰色关联分析对不同产地牛蒡子做出质量评价。
3·Act has directly in vitro inhibitory effect against influenza virus' replication, and is an active constituent of Fructus Arctii for the relieving exterior syndrome.
ACT在体外有直接抑制流感病毒复制的作用，是牛蒡子解表功能的有效成分，对其进行含量测定作为牛蒡子质量标准的定量指标是适宜和可行的。