Zhou H, Gu Y
Sichuan Institute of Chinese Materia Medica, Chongqing.
Zhongguo Zhong Yao Za Zhi. 1995 Jul;20(7):405-7, 447.
Berberine from crude and processed Phellodendron chinense was determined by UV TLC densitometry. The results indicate that the content of berberine in processed products is 11.8% to 98% less than that of the crude drug. The recovery of berberine is 98% +/- 1.7% and the Standard relative deviation is 1.7%.
采用紫外薄层扫描法测定了黄柏生品与炮制品中黄连素的含量。结果表明,炮制品中黄连素的含量比生品低11.8%至98%。黄连素的回收率为98%±1.7%,标准相对偏差为1.7%。