Su J, Wang B Q
National Institute for the Control of Pharmaceutical and Biological Products, Beijing.
Zhongguo Zhong Yao Za Zhi. 1994 Mar;19(3):158-60, 191.
Chuanxiog Rhizome, Chinese Angelica Root and Scrophularia Root in Guiqi mixture have been identified by TLC. A TLC-densitometric method for determining astragalosied in the patent medicine and its main ingredient Astragalus Root has been established. This method is sensitive and highly reproducible, with RSD under 3.0% and recovery over 98%.