From the quality announcement issued by the government in 2020, 9 species were sampled, including Salvia miltiorrhiza, Bupleurum chinense, Glehnia littoralis, Atractylodes lancea, Radix Aucklandiae, Semen Cassiae, Mulberry Leaves, Semen Celosiae and Fritillaria cirrhosa.

National extraction of Chinese herbal pieces is an effective method to evaluate the quality of Chinese herbal medicines nationwide, which plays an important role in cracking down on illegal activities and improving the supervision of the whole industry chain.