The contents of 20 trace elements in 5 species of Radix Adenophorae in Guizhou (Adenophora tetraphylla,A.stricta ssp.sessilifolia,A.hunanensis,A.rupincola,A.wilsonii)be determined and compared.

• 对轮叶沙参、无柄沙参、杏叶沙参、多毛沙参及聚叶沙参5种黔产南沙参药材中20种微量元素含量进行了测定并作比较。