Simultaneous Determination of Five Components in Operculina turpethum

[Objectives]This study was conducted to establish a method for the simultaneous determination of caffeic acid, rutin, ononin, luteolin, and apigenin in Operculina turpethum(L.) S. Manso. [Methods]With ononin from O. turpethum as the internal reference, the five components were separated by HPLC, and the contents of various components were calculated according to the relative correction factors of ononin with caffeic acid, rutin, luteolin, and apigenin. Meanwhile, the calculated results of quantitative analysis of multi-components by single marker(QAMS) were compared with the determined values of the external standard method. [Results] The linear relationship of the five components in their respective ranges was good(r=0.999 9). The average recovery was in the range of 97.48%-101.05%, and the RSD values were in the range of 1.04%-2.71%. The results obtained by QAMS were close to those obtained by the external standard method. [Conclusions] The method is accurate, stable and adaptable, and can be used for the determination of five flavonoids in O. turpethum.

一测多评技术在鼻咽解毒胶囊质量评价中的应用

目的建立鼻咽解毒胶囊一测多评的含量测定方法 ,验证该方法在鼻咽解毒胶囊质量控制中应用的可行性和准确性。方法以盐酸小檗碱为内参物,建立盐酸小檗碱与黄芩苷的相对校正因子,同时根据盐酸小檗碱与巴马汀、黄连碱、表小檗碱的内在函数关系,应用于含量测定,建立其一测多评法的多指标质量控制方法。结果建立了鼻咽解毒胶囊中多种成分一测多评法方法学的考察模式。结论以盐酸小檗碱、巴马汀、黄连碱、表小檗碱和黄芩苷为指标,采用一测多评法控制鼻咽解毒胶囊质量可行。

Application of Fingerprint Combined with QAMS in Quality Evaluation of Zhenrongdan Mixture

[Objectives] The research aimed to evaluate the quality of Zhenrongdan mixture by fingerprint combining QAMS. [Methods] The quality evaluation method was established and validated with echinacoside as internal reference to determine the contents of other components(ferulic acid, salvianolic acid B, and icariin) according to the relative correction factor. The accuracy and feasibility of QAMS were evaluated by comparison on the results between the measured value and calculation value by external standard method and QAMS. [Results] A common pattern of characteristic fingerprint of Zhenrongdan mixture by HPLC was established. Thirteen common peaks were identified, and they account for 91% of the total peak area, and four components were verified in five batches of Zhenrongdan mixture. Good similarities with correlation coefficients higher than 0.99 were found in the fingerprints. There was no significant difference between the quantitative results of the four ingredients in the five batches by external standard method and QAMS. [Conclusions] The method of fingerprint combined with QAMS could be used for the quality control of multiple components determination and fingerprint chromatography for Zhenrongdan mixture.

一测多评法测定南方菟丝子中7种活性成分的含量

目的建立同时测定南方菟丝子Cuscuta australis中绿原酸、隐绿原酸、咖啡酸、金丝桃苷、异槲皮苷、紫云英苷、山柰酚的一测多评法,验证该方法在南方菟丝子质量分析中应用的科学性及可行性。方法采用高效液相色谱法,以金丝桃苷为内参物,建立该成分与绿原酸、隐绿原酸、咖啡酸、异槲皮苷、紫云英苷和山柰酚的相对校正因子,采用相对校正因子来计算各成分的质量分数,同时用外标法测定南方菟丝子及其炮制品中7种活性成分的质量分数,对南方菟丝子一测多评的计算结果与外标法实测值进行比较,评价一测多评法在南方菟丝子中应用的准确性和科学性。结果各相对校正因子重复性良好,一测多评法测定结果与外标法测定结果无显著差异。结论以金丝桃苷为内标同时测定绿原酸、隐绿原酸、咖啡酸、异槲皮苷、紫云英苷、山柰酚的一测多评法可用于南方菟丝子的定量分析。