The trace element has an important function for the growth of cultivated Rheum. 摘要微量元素对于种植青海大黄的生长发育有着重要作用。
The secondary derivative differential pulse polarography was developed for the quantitative determination of chrysophanol in rheum. 建立了中草药大黄中大黄酚的二阶导数差示脉冲极谱定量分析方法。