独一味(Lamiophlomi s rotata)是唇形科濒危药用植物。根据模糊物元模型理论构建独一味产量与14个生态因子之间的模糊隶属函数,采用熵权法确定评价指标权重,利用ArcGIS平台确定青藏高原地区独一味生态适宜性空间分布,旨在探究独一味适...独一味(Lamiophlomi s rotata)是唇形科濒危药用植物。根据模糊物元模型理论构建独一味产量与14个生态因子之间的模糊隶属函数,采用熵权法确定评价指标权重,利用ArcGIS平台确定青藏高原地区独一味生态适宜性空间分布,旨在探究独一味适宜性分布状况,为濒危藏药独一味资源的动态监测及资源开发利用提供科学依据。结果表明:独一味最佳生态相似区域占研究区面积的3.13%、高度相似区域占6.34%、中度相似区域面积占8.53%、低度相似区域占6.35%、不相似区域占75.65%。独一味主要集中在青藏高原东部边缘四川、甘肃和青海高海拔地带的次生植被及逐渐退化的高山草甸区,基于GIS的模糊物元模型可评价独一味的生态适宜区域和空间分布状态,为其GAP选址和生境保护地带提供有价值的信息。展开更多
[Objectives]To determine active components of Lamiophlomis rotata(Benth.)Kudo.[Methods]A new method was developed for the quantitative determination of L.rotata by using Ultra-performance convergence chromatography.Th...[Objectives]To determine active components of Lamiophlomis rotata(Benth.)Kudo.[Methods]A new method was developed for the quantitative determination of L.rotata by using Ultra-performance convergence chromatography.The separation of active components of L.rotata was successfully achieved on Waters ACQUITY UPC column,with gradient elution carbon dioxide and methanol solvent at flow rate of 0.7 mL/min.The separation gradient elution rate was as follows:15%methanol 0-1 min,18%methanol 1-5 min,20%methanol 5-6 min,25%methanol 6-7 min,30%methanol 7-8 min,30%methanol 8-9 min,15%methanol 9-10 min.The conditions used in the separation process was as follows:column temperature 30℃;injection volume 2μL.Under the abovementioned conditions,the content of methyl glucoside was measured by 3D-full wavelength scanning.The validity of the method was tested by analyzing the precision,reproducibility,stability and accuracy.[Results]The results indicated that in terms of extraction and separation of compounds,supercritical CO2 not only has the diffusion property of gas,but also has the density and fluidity of liquid.[Conclusions]The ultra-high performance chromatography is a new technique for drug analysis.展开更多
A new highly oxygenated iridoid,lamiophlomiol C,was isolated from the roots of Lamiophlomis rotata and its structure was elucidated by spectrosoopic techniques and X-ray diffraction.
目的：建立高效液相色谱法同时测定独一味中7种成分含量的方法。方法：采用HPLC,Welchrom C18色谱柱,乙睛-0.1%磷酸水溶液梯度洗脱系统,体积流量1.0 m L·min^-1,检测波长为238,330,350 nm,柱温30℃。结果：7种成分的分离度良好,标...目的：建立高效液相色谱法同时测定独一味中7种成分含量的方法。方法：采用HPLC,Welchrom C18色谱柱,乙睛-0.1%磷酸水溶液梯度洗脱系统,体积流量1.0 m L·min^-1,检测波长为238,330,350 nm,柱温30℃。结果：7种成分的分离度良好,标准曲线在线性范围内相关性良好,加样回收率均值为96.47%-102.2%,RSD为0.70%-2.2%。结论：地上部分各成分组间具有较好的相关性,地上部分样品中山栀苷甲酯和8-O-乙酰山栀苷甲酯总量的均值为1.44%。地上部分比地下部分成分种类更多,含量更高,以地上部分入药更合理。所建立方法操作简单,具有较好的重复性和稳定性,可用于独一味药材的鉴别及质量评价。展开更多
文摘独一味(Lamiophlomi s rotata)是唇形科濒危药用植物。根据模糊物元模型理论构建独一味产量与14个生态因子之间的模糊隶属函数,采用熵权法确定评价指标权重,利用ArcGIS平台确定青藏高原地区独一味生态适宜性空间分布,旨在探究独一味适宜性分布状况,为濒危藏药独一味资源的动态监测及资源开发利用提供科学依据。结果表明:独一味最佳生态相似区域占研究区面积的3.13%、高度相似区域占6.34%、中度相似区域面积占8.53%、低度相似区域占6.35%、不相似区域占75.65%。独一味主要集中在青藏高原东部边缘四川、甘肃和青海高海拔地带的次生植被及逐渐退化的高山草甸区,基于GIS的模糊物元模型可评价独一味的生态适宜区域和空间分布状态,为其GAP选址和生境保护地带提供有价值的信息。
基金Collaborative Innovation in Tibetan Medicine(2019XTC013)Open Laboratory of Key Laboratory of Tibetan Medicine Basic Education(ZYYJC-19-01).
文摘[Objectives]To determine active components of Lamiophlomis rotata(Benth.)Kudo.[Methods]A new method was developed for the quantitative determination of L.rotata by using Ultra-performance convergence chromatography.The separation of active components of L.rotata was successfully achieved on Waters ACQUITY UPC column,with gradient elution carbon dioxide and methanol solvent at flow rate of 0.7 mL/min.The separation gradient elution rate was as follows:15%methanol 0-1 min,18%methanol 1-5 min,20%methanol 5-6 min,25%methanol 6-7 min,30%methanol 7-8 min,30%methanol 8-9 min,15%methanol 9-10 min.The conditions used in the separation process was as follows:column temperature 30℃;injection volume 2μL.Under the abovementioned conditions,the content of methyl glucoside was measured by 3D-full wavelength scanning.The validity of the method was tested by analyzing the precision,reproducibility,stability and accuracy.[Results]The results indicated that in terms of extraction and separation of compounds,supercritical CO2 not only has the diffusion property of gas,but also has the density and fluidity of liquid.[Conclusions]The ultra-high performance chromatography is a new technique for drug analysis.
文摘A new highly oxygenated iridoid,lamiophlomiol C,was isolated from the roots of Lamiophlomis rotata and its structure was elucidated by spectrosoopic techniques and X-ray diffraction.
文摘目的：建立高效液相色谱法同时测定独一味中7种成分含量的方法。方法：采用HPLC,Welchrom C18色谱柱,乙睛-0.1%磷酸水溶液梯度洗脱系统,体积流量1.0 m L·min^-1,检测波长为238,330,350 nm,柱温30℃。结果：7种成分的分离度良好,标准曲线在线性范围内相关性良好,加样回收率均值为96.47%-102.2%,RSD为0.70%-2.2%。结论：地上部分各成分组间具有较好的相关性,地上部分样品中山栀苷甲酯和8-O-乙酰山栀苷甲酯总量的均值为1.44%。地上部分比地下部分成分种类更多,含量更高,以地上部分入药更合理。所建立方法操作简单,具有较好的重复性和稳定性,可用于独一味药材的鉴别及质量评价。
