Determination of Ursolic Acid and Oleanolic Acid in Schizonepeta Tenuifolia from Different Planting Areas by HPLC-DAD;高效液相色谱-光电二极管阵列检测器联用检测不同产地荆芥中乌索酸和齐墩果酸
Determination of Oleanolic Acid and Ursolic Acid in Oldenlandia Diffusa (Willd.) Roxb. by LC/MS;液质联用法测定白花蛇舌草齐墩果酸与熊果酸含量
Based on spectral IR,MS, H NMR, C NMR and physico chemical constant analysis,they were identified as 7 epi t通过理化常数及IR、MS、H－NMR、 C－NMR分析，鉴定为7－表－紫杉醇B（Ⅰ）、， －二乙酰基－0－去乙酰基巴卡亭Ⅲ（Ⅱ）、紫杉醇C－7－木糖甙（Ⅲ）、紫杉醇（Ⅳ）和 －表－熊果酸（Ⅴ）。
Results The average recovery of ursolic acid and oleanolic acid was 98. and 97.% (n= ) with RSD of .% and .89% (n= 果 熊果酸和齐墩果酸的平均回收率分别为 98. % ,97. % (n= ) ,RSD分别为 . ,.89 (n= )。
Results:The average recovery was respectively 98.% and 97. % (n= ),RSD .78% and .9 % (n= ) for ursolic acid and oleano果 :熊果酸和齐墩果酸的平均回收率分别为 98.% ,97. % (n = ) ,RSD分别为 .78% ,.9 % (n = )。