the main compounds before processing were 8 Hydroxy p cymeme (7.72%), 4 Methyl 2, 6 di tert butylphenol(7.48%) and 1,2 Diphenylethylene (8.12%).

• 炮制前的主要成分是 :8 羟基 对伞花烃 (7.；72%25 )、4 甲基 2；6 二叔丁基苯酚 (7