Guo Y, Cui Y, Zhou J, Yan Y, Yuan P
Beijing University of TCM.
Zhongguo Zhong Yao Za Zhi. 1995 Oct;20(10):591-2, 638.
The content of ursolic acid in Folium Ilicis Cornutae (Gouguye) gathered in different periods from Yongfeng county of Jiangxi province was determined by TLCS method. The result shows that the content appears to be low in samples gathered in April, but about the same in samples of February, June, August, October and December.
采用薄层扫描法测定江西永丰县不同采收期的枸骨叶（枸骨叶）中熊果酸的含量。结果表明，4月份采集的样品中含量较低，而2月、6月、8月、10月和12月采集的样品中含量大致相同。
