[关键词]
[摘要]
目的 采用HPLC色谱法建立地黄指纹图谱,优化梓醇含量的测定方法,为地黄药材质量标准的提升提供依据。方法 选用Atlantis T3-特色硅胶C18色谱柱,流动相为0.1%磷酸水-乙腈,检测波长为203 nm,体积流量1.0 mL/mL,柱温为35℃,梓醇为对照峰,建立20批地黄指纹图谱。采用指纹图谱相似度评价软件进行数据评价,同法测定20批地黄中梓醇的含量。结果 所建立的标准对照指纹图谱,20批地黄的相似度均在0.917以上,20批地黄中梓醇质量分数均在0.2%以上。结论 建立的地黄HPLC指纹图谱测定方法,重复性、精密度和稳定性良好,梓醇含量测定符合要求,可有效避免《中国药典》2015年版收载方法检测时糖类物质的干扰,为提升地黄药材质量评价水平提供科学参考。
[Key word]
[Abstract]
Objective The fingerprint of Rehmannia glutinosa was established by HPLC to provide scientific basis for improving the quality of R. glutinosa. Methods The characteristic silicagel C18 column-Atlantis T3 was used, and the mobile phase was 0.1% phosphate water and acetonitrile by gradient elution. Absorption wavelength was 203 nm, and flow rate was 1.0 mL/mL with column temperature of 35℃. Setting catalpol as the control peak, 20 batches of R. glutinosa fingerprint was established. Fingerprint similarity evaluation software was used for data evaluation and determinating the catalpol content of 20 batches of R. glutinosa. Results The standard contrast chromatographic fingerprint similarity of 20 batches R. glutinosa reached above 0.917. The 20 batches catalpol content was above 0.2%. Conclusion The established fingerprint chromatography was proved that it had good precision, stability, and repeatability. The catalpol content determination met requirement which can avoid interference of saccharide compared with China Pharmacopoeia method and provide scientific reference for improving the quality of R. glutinosa.
[中图分类号]
[基金项目]