Gu Y, Meng G
Institute of Chinese Materia Medica, China Academy of Traditional Chinese Medicine, Beijing.
Zhongguo Zhong Yao Za Zhi. 1990 Jul;15(7):412-3, 446.
The time, volume and method in preparing decoction of Epimedium grandiflorum have been studied by orthogonal design through the determination of icariin. The factors which influence decoction-making conditions are in the order of: volume greater than time greater than method.