Li X, Hu S, Yang L
Institute of Chinese Materia Medica, China Academy of Traditional Chinese Medicine, Beijing.
Zhongguo Zhong Yao Za Zhi. 1991 May;16(5):279-80, 317-8.
This article reports the detecting result of trace elements in processed products of Pinellia ternata and of the contents of As, Hg, Pb in the products processed with sulfur. The result shows that all the processing procedures are necessary and safe.