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目的:建立盘龙七药材的质量标准。方法:测定不同采收期或不同采集地盘龙七的水分、总灰分、酸不溶性灰分、浸出物、重金属、砷盐的含量;采用TLC对盘龙七进行理化鉴别;采用HPLC测定盘龙七中岩白菜素的含量。结果:盘龙七的质量标准确定为:水分不得过14.3%,总灰分不得过15.2%,酸不溶性灰分不得过4.6%,水浸出物不得低于4.8%,95%乙醇浸出物不得低于3.7%,挥发性醚浸出物不得低于4.9%,铅的含量小于0.002%,砷盐含量小于0.0001%,岩白菜素含量应不少于2.3%。结论:本文建立的方法可作为评价盘龙七质量的标准。
Objective: To establish Panlong seven herbs quality standards. Methods: The content of water, total ash, acid-insoluble ash, extract, heavy metals and arsenic in Longshansiqi collected at different harvesting times or different sites were determined. The physicochemical identification of Panlong seven was carried out by TLC. Bergenin content. Results: The quality standard of Panlongqi was determined as follows: no more than 14.3% moisture, 15.2% total ash, 4.6% acid insoluble ash, no less than 4.8% water extract, no less than 3.7% 95% ethanol extract %, Volatile ether extract not less than 4.9%, lead content less than 0.002%, arsenic content less than 0.0001%, bergenin content should not be less than 2.3%. Conclusion: The method established in this paper can be used as a standard to evaluate Panlong seven quality.