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Natori等曾报道,从茯苓中分离出几种三萜类,并推测茯苓中存在少量的具有结合二烯的化合物。但将这些化合物彼此分开较为困难。作者已报道了HPLC法对去氢茯苓酸的定量分析,又利用反相制备HPLC对去氢茯苓酸进行了纯化,并鉴定了其结构。本研究使用纯化的标准物,对茯苓中去氢茯苓酸进行了定量测定,此方法可用于小半夏加茯苓汤中去氢茯苓酸的定量分析。 实验使用以CH_3CN-H_2O-AcOH(70:
Natori et al. reported that several triterpenoids were isolated from loquat, and it was assumed that there was a small amount of compound having diene in the loquat. However, it is difficult to separate these compounds from each other. The authors have reported the quantitative analysis of dehydroabietic acid by HPLC and the purification of dehydroabietic acid by reverse phase preparative HPLC and identified its structure. In this study, the purified standard was used to quantitatively determine dehydroabietic acid in cesium. This method can be used for the quantitative analysis of dehydroabietic acid in Pinellia tuber. The experiment used CH_3CN-H_2O-AcOH (70: