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用薄层刮板-可见分光光度法检测丝瓜藤及其炒黄、炒炭制品中齐墩果酸的含量。其方法回收率为99．52％，r=0．9998（n=5），RSD为1．05％，取得了较为可靠的结果。证明丝瓜藤原药材及其炮制品中齐墩果酸含量无显著差别。
Thin-layer scraper-visible spectrophotometry was used to detect the content of oleanolic acid in Luffa vine and its fried yellow and fried charcoal products. The recovery rate of the method was 99.52%, r=0.9998 (n=5), RSD was 1.05%, and reliable results were obtained. It was proved that there was no significant difference in oleanolic acid content in raw materials of Luffa vine and its processed products.