Objective To observe the meridian tropism of Polygoni Avicularis Herba by tissue distribution of avicularin in rats. Methods Tissue distribution of avicularin in rat following a single iv administration was appointed ...Objective To observe the meridian tropism of Polygoni Avicularis Herba by tissue distribution of avicularin in rats. Methods Tissue distribution of avicularin in rat following a single iv administration was appointed and observed. HPLC method was established and validated for the determination of avicularin in rat tissues. Results Kidney and bladder were the most important target tissue of avicularin. Conclusion HPLC method is successfully applied to tissues distribution study of avicularin after iv administration to rats, and the results explain Polygoni Avicularis Herba on bladder tropism reasonably.展开更多
[Objectives] To establish a HPLC method for the simultaneous determination of three components( namely,quercetin,quercitrin and avicularin) in Herba Taxilli. [Methods]Agilent C18 liquid chromatography column( column s...[Objectives] To establish a HPLC method for the simultaneous determination of three components( namely,quercetin,quercitrin and avicularin) in Herba Taxilli. [Methods]Agilent C18 liquid chromatography column( column size: 150 mm × 4. 6 mm,5 m) was used;mobile phase Dacetonitrile∶ water = 22∶ 78; flow rate: 1. 0 m L/min; column temperature: 35℃; injection volume: 10 μL; detection wavelength: 254 nm. [Results]The injection volume of quercetin,quercitrin and avicularin was in a good linear relationship with the peak area in the range of 0. 22-4. 4 μg( R = 1),0. 096-3. 84 μg( R = 0. 999 6),and 0. 106-5. 3 μg( R = 0. 999 9),and the average sample recovery was 99. 32%,100. 53%,and 98. 96%,respectively. [Conclusions]The stability and reproducibility of the established method for determining the content of Herba Taxilli in this experiment are good,and it is expected to provide reference for its quality control and evaluation.展开更多
基金Natural Science Foundation of Huaihai Institute of Technology (2010HS09, KX10051)
文摘Objective To observe the meridian tropism of Polygoni Avicularis Herba by tissue distribution of avicularin in rats. Methods Tissue distribution of avicularin in rat following a single iv administration was appointed and observed. HPLC method was established and validated for the determination of avicularin in rat tissues. Results Kidney and bladder were the most important target tissue of avicularin. Conclusion HPLC method is successfully applied to tissues distribution study of avicularin after iv administration to rats, and the results explain Polygoni Avicularis Herba on bladder tropism reasonably.
基金Supported by Natural Science Foundation Project of Guangxi(2014GXNSFBA118195)Talent Training Construction Program of Team of Professor Yang Shilin in Guangxi University of Chinese Medicine(YSL17005)Project of National Natural Science Foundation(81660669)
文摘[Objectives] To establish a HPLC method for the simultaneous determination of three components( namely,quercetin,quercitrin and avicularin) in Herba Taxilli. [Methods]Agilent C18 liquid chromatography column( column size: 150 mm × 4. 6 mm,5 m) was used;mobile phase Dacetonitrile∶ water = 22∶ 78; flow rate: 1. 0 m L/min; column temperature: 35℃; injection volume: 10 μL; detection wavelength: 254 nm. [Results]The injection volume of quercetin,quercitrin and avicularin was in a good linear relationship with the peak area in the range of 0. 22-4. 4 μg( R = 1),0. 096-3. 84 μg( R = 0. 999 6),and 0. 106-5. 3 μg( R = 0. 999 9),and the average sample recovery was 99. 32%,100. 53%,and 98. 96%,respectively. [Conclusions]The stability and reproducibility of the established method for determining the content of Herba Taxilli in this experiment are good,and it is expected to provide reference for its quality control and evaluation.