Liu S T, Guan X J, Li X P, Wang Q
Zhongguo Zhong Yao Za Zhi. 1989 Oct;14(10):596-8, 638.
A comparison of the contents of 7 trace elements (Zn, Mn, Cu, Fe, Ca, P, Pb) in Eucommia ulmoides and its processed products has been made, and the significance of processing Eucommia ulmoides is discussed in light of the experimental results.
对杜仲及其炮制品中7种微量元素(锌、锰、铜、铁、钙、磷、铅)的含量进行了比较,并根据实验结果探讨了杜仲炮制的意义。