[Objectives]To establish a thin-layer chromatography(TLC)method for the determination of rubiadin-1-methyl ether in Yao Medicine Chuanlianzhu(Damnacanthus giganteus).[Methods]A silica gel G thin-layer plate was adopte...[Objectives]To establish a thin-layer chromatography(TLC)method for the determination of rubiadin-1-methyl ether in Yao Medicine Chuanlianzhu(Damnacanthus giganteus).[Methods]A silica gel G thin-layer plate was adopted for TLC.Petroleum ether(60-90℃)-chloroform-methanol-water(7:15:3:1)was used as the developing solvent and inspected under ultraviolet lamp(365 nm).The content was determined by Inertsil ODS-3 C 18 column(4.60 mm×250 mm,5μm),mobile phase:acetonitrile-0.2%phosphoric acid gradient elution,detection wavelength 277 nm,flow rate 1.0 mL/min,column temperature 30℃,injection volume 10μL.[Results]The spots of 10 Chuanlianzhu samples from different origins showed the same color at the same position as the control,and the spots were clear and specific.The injection volume of rubiadin-1-methyl ether showed a good linear relationship in the range of 2.90-145μg(R=0.9996).The average recovery rate of rubiadin-1-methyl ether in the low,medium and high dose groups of Yao Medicine Chuanlianzhu was 98.72%,and RSD=1.78%.[Conclusions]This method can effectively identify Yao Medicine Chuanlianzhu medicinal materials and accurately determine the content of rubiadin-1-methyl ether in the medicinal materials.It provides a scientific basis for the development and utilization of Yao Medicine Chuanlianzhu medicinal resources.展开更多
Five phospholipids in human placenta were determined by phosphorus 31 nuclear magnetic resonance(^(31)P NMR)spectroscopy and thin-layer chromatography(TLC) scanning combined with the corrective method of absorbance pr...Five phospholipids in human placenta were determined by phosphorus 31 nuclear magnetic resonance(^(31)P NMR)spectroscopy and thin-layer chromatography(TLC) scanning combined with the corrective method of absorbance proportional coefficient. The NMR spectrometer used this investigation was a Bruker AM-500 spectrometer operating at 202.4 MHz for ^(31)P chemical shifts are relative to 85% phosphoric acid. TIC was carried out by silica gel H plate developed in chloroform-methanol-glacial acetic acid-ethanol-water(25:4:6:2:0.5),with Vaskovsky reagent as colour -developing agent of phospholipids.展开更多
本文对中药茜草进行了本草考证和原植物调查,经鉴定有15种,均属茜草属植物.其商品的主流品种是茜草(Rubia cordifo lia L.).地区性用药的主要品种有大叶茜草、披针叶茜草、洋茜草、狭叶茜草和林茜草等.对茜草属的主要成分蒽醌类化合物...本文对中药茜草进行了本草考证和原植物调查,经鉴定有15种,均属茜草属植物.其商品的主流品种是茜草(Rubia cordifo lia L.).地区性用药的主要品种有大叶茜草、披针叶茜草、洋茜草、狭叶茜草和林茜草等.对茜草属的主要成分蒽醌类化合物作了薄层层析分析,为茜草药材及其原植物的比较和鉴别提供了参考方法。展开更多
基金Supported by State Administration of Traditional Chinese Medicine High-level Key Discipline Construction Project of Traditional Chinese Medicine-Ethnic Minority Pharmacy (Zhuang Pharmacy) (zyyzdxk-2023165)General Scientific Research Program of Guangxi University of Chinese Medicine in 2020 (2020MS063)+4 种基金Key R&D Project of Guangxi Science and Technology Department (Guike AB21196057)Young Talent Cultivation Program of Guangxi International Zhuang Medicine Hospital (2022001)Funding Project of High-level Talent Cultivation and Innovation Team of Guangxi University of Chinese Medicine (2022A008)Guangxi Traditional Chinese Medicine Interdisciplinary Innovation Team Project (GZKJ2309)State Administration of Traditional Chinese Medicine"Twelfth Five-Year Plan"Key Discipline of Traditional Chinese Medicine (Ethnic Pharmacy)Zhuang Pharmacy.
文摘[Objectives]To establish a thin-layer chromatography(TLC)method for the determination of rubiadin-1-methyl ether in Yao Medicine Chuanlianzhu(Damnacanthus giganteus).[Methods]A silica gel G thin-layer plate was adopted for TLC.Petroleum ether(60-90℃)-chloroform-methanol-water(7:15:3:1)was used as the developing solvent and inspected under ultraviolet lamp(365 nm).The content was determined by Inertsil ODS-3 C 18 column(4.60 mm×250 mm,5μm),mobile phase:acetonitrile-0.2%phosphoric acid gradient elution,detection wavelength 277 nm,flow rate 1.0 mL/min,column temperature 30℃,injection volume 10μL.[Results]The spots of 10 Chuanlianzhu samples from different origins showed the same color at the same position as the control,and the spots were clear and specific.The injection volume of rubiadin-1-methyl ether showed a good linear relationship in the range of 2.90-145μg(R=0.9996).The average recovery rate of rubiadin-1-methyl ether in the low,medium and high dose groups of Yao Medicine Chuanlianzhu was 98.72%,and RSD=1.78%.[Conclusions]This method can effectively identify Yao Medicine Chuanlianzhu medicinal materials and accurately determine the content of rubiadin-1-methyl ether in the medicinal materials.It provides a scientific basis for the development and utilization of Yao Medicine Chuanlianzhu medicinal resources.
文摘Five phospholipids in human placenta were determined by phosphorus 31 nuclear magnetic resonance(^(31)P NMR)spectroscopy and thin-layer chromatography(TLC) scanning combined with the corrective method of absorbance proportional coefficient. The NMR spectrometer used this investigation was a Bruker AM-500 spectrometer operating at 202.4 MHz for ^(31)P chemical shifts are relative to 85% phosphoric acid. TIC was carried out by silica gel H plate developed in chloroform-methanol-glacial acetic acid-ethanol-water(25:4:6:2:0.5),with Vaskovsky reagent as colour -developing agent of phospholipids.
文摘目的建立远志薄层色谱(thin-layer chromatography,TLC)及超高效液相色谱(ultra-high performance liquid chromatography,UHPLC)特征图谱,并分析远志全根、根皮和木心间化学成分差异,为远志质量评价提供参考。方法以3,6’-二芥子酰基蔗糖、细叶远志苷A和远志皂苷B为指标成分建立TLC图谱;用UHPLC法建立远志特征图谱,结合热图聚类分析、主成分分析(principal component analysis,PCA)和正交偏最小二乘法判别分析(partial least squares discriminant analysis,OPLS-DA)评价多批远志全根、根皮和木心之间的差异性。结果TLC图谱斑点清晰、分离度较好;UHPLC特征图谱共标定28个共有峰,指认了其中的7个特征峰,13批次远志特征图谱与对照图谱相似度均大于0.9,批次间质量较为稳定;TLC和UHPLC特征图谱显示远志全根、根皮和木心化学组成一致,未发现特异成分,热图聚类分析和PCA显示远志全根与根皮中各成分峰面积接近,OPLSDA筛选出10个变量投影重要性(variable important in projection,VIP)值大于1的差异性成分。结论所建立的TLC及UHPLC特征图谱简便、准确、稳定,展开系统和提取溶剂均使用低毒试剂,符合绿色化学理念,适用于远志的质量评价,从化学分析角度说明木心的存在对远志整体化学成分影响较小。
文摘本文对中药茜草进行了本草考证和原植物调查,经鉴定有15种,均属茜草属植物.其商品的主流品种是茜草(Rubia cordifo lia L.).地区性用药的主要品种有大叶茜草、披针叶茜草、洋茜草、狭叶茜草和林茜草等.对茜草属的主要成分蒽醌类化合物作了薄层层析分析,为茜草药材及其原植物的比较和鉴别提供了参考方法。