[Metallic elements in boiling water extracts from 3 processed products of concha Aracae].

The results show that the contents of Zn, Mn, Fe, Cu, Ca, Pb et al in the boiling water extracts of calcined and vinegar-quenched products are higher than those of calcined products, the contents of Zn, Mn, Fe, Cu, Ca, Pb etc. in the boiling water extracts of calcined products are higher than those of crude drugs, and the contents of Zn, Cu, Ca, Pb, V, Mn etc. in the boiling water extracts from 3 processed products are higher than those in the digestive juices of boiling water extracts from 3 processed products, but the content of Fe in the boiling water extracts from 3 processed products are lower than that in the digestive juices of boiling water extracts from 3 processed products.