目的:以牛磺熊去氧胆酸和牛磺鹅去氧胆酸为指标,建立龙泽熊胆胶囊中熊胆粉的含量测定方法。方法:采用高效液相色谱串联蒸发光检测器,色谱柱为ChromCore AQ C 18(4.6 mm×250 mm,5μm),乙腈(A)-5 mmol•L^(-1)醋酸铵溶液(B)为流动相,...目的:以牛磺熊去氧胆酸和牛磺鹅去氧胆酸为指标,建立龙泽熊胆胶囊中熊胆粉的含量测定方法。方法:采用高效液相色谱串联蒸发光检测器,色谱柱为ChromCore AQ C 18(4.6 mm×250 mm,5μm),乙腈(A)-5 mmol•L^(-1)醋酸铵溶液(B)为流动相,梯度洗脱(0~40 min,25%A;40~50 min,25%A→29%A;50~80 min,29%A;80~100 min,29%A→40%A),流速1.0 mL•min^(-1),柱温30℃,ELSD漂移管温度110℃,氮流量2.5L•min^(-1)。结果:牛磺熊去氧胆酸进样量在1.069~9.57μg内、牛磺鹅去氧胆酸进样量在0.74046~7.40464μg内,进样量的对数与峰面积的对数呈良好的线性关系;仪器精密度、重复性、稳定性试验的RSD<2.0%;经低、中、高3个浓度的准确度试验考察,牛磺熊去氧胆酸的回收率为95.2%~97.7%,牛磺鹅去氧胆酸的回收率为91.9%~95.9%。测定样品42批次,牛磺熊去氧胆酸和牛磺鹅去氧胆酸的含量分别为0.18~0.43、0.10~0.44 mg•粒^(-1)。结论:本法适用于龙泽熊胆胶囊中熊胆粉的质量控制,可为完善龙泽熊胆胶囊的质量标准提供科学的依据。展开更多
[Objectives] To establish a method for the determination of gallic acid in Shuijia Zhixue capsule and Rotala rotundifolia .[Methods] High performance liquid chromatography (HPLC) and Phenomenex C 18 column were used, ...[Objectives] To establish a method for the determination of gallic acid in Shuijia Zhixue capsule and Rotala rotundifolia .[Methods] High performance liquid chromatography (HPLC) and Phenomenex C 18 column were used, the mobile phase was 0.1% phosphoric acid∶ methanol=85∶ 15, the flow rate was 0.5 mL/min, and the detection wavelength was 270 nm.[Results] In the range of (2-25)μg/mL , the concentration of gallic acid had a good linear relationship with the peak area, r =0.990 8;the average recovery was 96.88%.[Conclusions] The method was simple, sensitive and reproducible. It provided a basis for the analysis of gallic acid in Rotala rotundifolia and Shuijia Zhixue capsule and the establishment of quality detection methods in the future.展开更多
[Objective]The paper was to determine the contents of gallic acid and cinnamic acid in Chinese herb rhubarb by HPLC.[Method]High performance liquid chromatography(HPLC)was established with the following conditions:The...[Objective]The paper was to determine the contents of gallic acid and cinnamic acid in Chinese herb rhubarb by HPLC.[Method]High performance liquid chromatography(HPLC)was established with the following conditions:Thermo SCIENTIFIC Hypersil GOLD Dim column(4.6 mm×250 mm,5μm),mobile phase methanol-0.1%phosphoric acid solution,gradient elution,detection wavelength 278 nm,flow rate 1.0 mL/min,column temperature 30℃,injection volume 10 pL.[Result]The content of gallic acid and cinnamic acid in rhubarb was determined by HPLC,and they showed good linear relationship in the linear ranges of 0.125-1.250 pg(E2=0.9998)and 0.0382-0.3820μg(E2=0.9994),respectively.[Conclusion]A HPLC method is established to determine gallic acid and cinnamic acid content in rhubarb.The method will provide a scientific basis for quality control of rhubarb and its traditional Chinese medicine.展开更多
基金Supported by the Project of Sichuan Provincial Department of Science and Technology(2017SZYZF0012)Research Program Foundation of Science and Technology Bureau of Liangshan Yi Autonomous Prefecture(15yyjs0002)
文摘[Objectives] To establish a method for the determination of gallic acid in Shuijia Zhixue capsule and Rotala rotundifolia .[Methods] High performance liquid chromatography (HPLC) and Phenomenex C 18 column were used, the mobile phase was 0.1% phosphoric acid∶ methanol=85∶ 15, the flow rate was 0.5 mL/min, and the detection wavelength was 270 nm.[Results] In the range of (2-25)μg/mL , the concentration of gallic acid had a good linear relationship with the peak area, r =0.990 8;the average recovery was 96.88%.[Conclusions] The method was simple, sensitive and reproducible. It provided a basis for the analysis of gallic acid in Rotala rotundifolia and Shuijia Zhixue capsule and the establishment of quality detection methods in the future.
基金Supported by National Natural Science Foundation of China(81660701)2019 Guangxi First-class Discipline Construction Project of Guangxi University of Traditional Chinese Medicine(2019XK105)+3 种基金Key Laboratory Funding Project of Guangxi Zhuang and Yao Ethnic Medicine(GXZYKF2019-2,KJT19005)Natural Science Foundation of Guangxi Province(2016GXNSFAA380148)Basic Scientific Research Ability Promotion Project of Young and Middle-aged Teachers in Guangxi Universities and Colleges in 2019(2019KY0341)Level III Laboratory for Chinese Medical Research by National Administration of Traditional Chinese Medicine:Chemistry and Quality Analysis Laboratory of Zhong(Zhuang)Medicine(GZYYF 2009[21])。
文摘[Objective]The paper was to determine the contents of gallic acid and cinnamic acid in Chinese herb rhubarb by HPLC.[Method]High performance liquid chromatography(HPLC)was established with the following conditions:Thermo SCIENTIFIC Hypersil GOLD Dim column(4.6 mm×250 mm,5μm),mobile phase methanol-0.1%phosphoric acid solution,gradient elution,detection wavelength 278 nm,flow rate 1.0 mL/min,column temperature 30℃,injection volume 10 pL.[Result]The content of gallic acid and cinnamic acid in rhubarb was determined by HPLC,and they showed good linear relationship in the linear ranges of 0.125-1.250 pg(E2=0.9998)and 0.0382-0.3820μg(E2=0.9994),respectively.[Conclusion]A HPLC method is established to determine gallic acid and cinnamic acid content in rhubarb.The method will provide a scientific basis for quality control of rhubarb and its traditional Chinese medicine.