[关键词]
[摘要]
目的 采用一测多评法同时测定仙灵骨葆胶囊中5种成分。方法 以淫羊藿苷为基准,建立仙灵骨葆胶囊中该成分与朝藿定C、川续断皂苷VI、补骨脂素及异补骨脂素的相对校正因子,利用相对校正因子分别计算其量,同时对一测多评法的计算值与外标法实测值进行比较,并用不同色谱柱考察相对保留时间及计算量,评价一测多评法在仙灵骨葆胶囊中应用的可行性和准确性。结果 建立了仙灵骨葆胶囊中多成分一测多评的定量控制方法,外标法各成分的进样量淫羊藿苷在8.2~328.0 ng(r=0.999 5)、朝藿定C在0.055 6~2.224 0 μg(r=0.999 6)、川续断皂苷VI在0.144 1~5.764 0 μg(r=0.999 6)、补骨脂素在5.4~215.2 ng(r=0.998 0)、异补骨脂素在6.6~265.6 ng(r=0.998 5)线性关系良好,平均回收率分别为97.59%、98.58%、98.11%、97.86%、98.22%,RSD均小于2.0%;并采用夹角余弦法对一测多评计算值与外标实测值进行评价,结果无显著性差异。结论 采用基于相对保留时间定位和相对校正因子计算的一测多评法既能利用一种对照品同时测定多成分的量,节约对照品,又能适合多指标质量评价模式的要求,提高工作效率。
[Key word]
[Abstract]
Objective To investigate the positioning based on the relative retention time of fingerprinting and to establish a new quality evaluation method for traditional Chinese medicine preparations, using one chemical reference substance to calcutate multi-components simultaneously. Methods Employed icariin as the maker component, icariin relative correction factors (RCF) of epimedin C to icariin, asperosaponin VI to icariin, psoralen to icariin and angelicin to icariin were ealeatated in the chromatographic conditions for determination of the four components in Xianling Gubao Capsule (XGC). The contents of icariin were determined by external standard method, and those of epimedin C, asperosaponin VI, psoralen and angelicin were calculated by icariin and their RCF. The accuracy of the new method was evaluated by comparing the relative retention times and calculating the content which using different brands columns for determination. Results The analysis methods were established,the linearity was good when sample volume was in the range of at 8.2-328.0 ng for icariine(r=0.999 5), 0.055 6-2.224 μg for epimedin C (r=0.999 6), 0.144 1-5.764 μg for asperosaponin VI (r=0.999 6), 5.4-215.2 ng (r=0.998 0) for psoralen, 6.6-265.6 ng (r=0.998 5) for angelicin. The average recoveries of asperosaponin VI, psoralen and psoralen were 97.59%, 98.58%, 98.11%, 97.86%, 98.22%, respectively. The RSDs of recovery were all less than 2.0%;There has been no significant difference between the calculated contents and the determined contents, according to the angle cosine value. Conclusion The method can control the components without providing epimedin C, asperosaponin VI, psoralen, and angelicin reference. The method is not only save reference substance and medicine resources, but also suitable quality evaluation pattern for TCM preparation. This new method made fingerprinting more meaningful in TCM quality control.
[中图分类号]
[基金项目]
金华市科技局科技项目(2015-3-031)