目的建立留坝西洋参药材皂苷成分的特征图谱。方法通过固相萃取小柱预处理样品,电喷雾质谱正离子模式全扫描法检测。结果从西洋参药材总提物的正离子全扫描总离子流图中选择了3个具有代表性的强峰,建立了西洋参药材皂苷成分的特征对应图谱。结论该方法有较好的重现性,能准确分析、鉴别西洋参药材。

Objective To establish characteristic spectrum of ginsenosides in Panax quinquefolium from Liuba. Methods Using C_(18) solid phase-extraction cartridges, main ginsenosides from 40% ethanol extracts of P. quinquefolium were purified. Then the samples were analyzed by HPLC-EMS. Results(From the) total ion spectrum of P. quinquefolium, 3 stronger peaks were selected. Based on them, characteristic corresponding spectrum of ginsenosides in P. quinquefolium from Liuba was established. Conclusion This method has reliable reproducibility and precision. Its simple pretreatment, easily operation, and rapidly analytic procedure show that this method is suitable for identifying P. quinquefolium.

陕西省科委项目“陕西省中药材规范化种植基地县”(2002-264)