[关键词]
[摘要]
目的 采用UPLC建立丹参微波提取法与传统提取法的指纹图谱并鉴定主要色谱峰,结合化学计量学方法比较不同提取方法化学成分的特征差异。方法 采用超高效液相色谱,以乙腈-0.1%甲酸水溶液为流动相,体积流量为0.3 mL/min,检测波长为270 nm,建立丹参传统提取法与微波提取法的指纹图谱;对8个指标性成分进行含量测定,采用SPSS 22.0软件进行主成分分析和t检验分析,从而进一步评价丹参微波提取与传统提取法之间的差异性。结果 传统提取法与微波提取法分别标定16个共有峰和17个共有峰,且8个指标性成分的含量具有差异性。在相似度评价中,对丹参不同提取法的指纹图谱进行对比,相似度均>0.945。指标性成分的含量上,微波提取法中指标性成分的综合质量分数均高于传统提取法,8个指标成分的均值表明微波提取法高于传统提取法,与传统提取法比,丹参素钠、原儿茶醛、迷迭香酸、紫草酸、丹酚酸B、隐丹参酮、丹参酮ⅡA的含量具有显著性差异(P<0.05,0.01)。结论 通过对指纹图谱的比较,以及化学计量学方法评价,丹参不同提取法下的整体化学组分类似,通过t检验分析化学成分的含量具有一定差异,且丹参微波提取法的含量高于传统提取法。微波提取法相较于传统提取法具有一定的优势,此方法的建立可以为微波提取法在中药领域的广泛应用奠定基础。
[Key word]
[Abstract]
Objective To establish the UPLC fingerprint of Salvia miltiorrhiza microwave extraction method and traditional extraction method and identify the main chromatographic peaks, the chemometrics method was used to compare the chemical differences of different extraction methods. Methods The separation was performed on a chromatographic Waters ACQUITY UPLC BEH sheid C18 column (100 mm×2.1 mm, 1.7 μm), with acetonitrile (A)-0.1% aqueous formic acid (B) as the mobile phase gradient elution. The flow rate was 0.3 mL/min, the detection wavelength was 270 nm, and the fingerprints of traditional extraction method and microwave extraction method of S. miltiorrhiza; The content of eight index components was determined, and SPSS 22.0 software was used for principal component analysis and t-test analysis to further evaluate the difference between microwave extraction method and traditional extraction method. Results The traditional extraction method and the microwave extraction method respectively calibrate 16 and 17 common peaks, and the content of eight index components was different. In the similarity evaluation, the fingerprints of different extraction methods of S. miltiorrhiza were compared, and the similarity was > 0.945. The content of the index components and the comprehensive mass fraction of the index components in the microwave extraction method were higher than the traditional extraction method, and the mean value of the eight index components showed that the microwave extraction method was higher than the traditional extraction method. Compared with the traditional extraction method, there were significant differences in the content of salvianic acid A sodium, protocatechuic aldehyde, rosmarinic acid, lithospermic acid, salvianolic acid B, cryptotanshinone, and tanshinone ⅡA (P < 0.05, 0.01). Conclusion Through the comparison of fingerprints and chemometric methods, the overall chemical composition of S. miltiorrhiza under different extraction methods is similar. The content of chemical components is different by t-test, and the content of S. miltiorrhiza microwave extraction method is higher than traditional extraction method. It is concluded that the microwave extraction method has certain advantages compared with the traditional extraction method. The establishment of this method can lay a foundation for the wide application of microwave extraction method in the field of traditional Chinese medicine.
[中图分类号]
[基金项目]
国家自然科学基金资助项目(81760719);贵州省普通高等学校中药民族药制剂重点实验室(黔教合KY字[2016]005);贵州省药物新剂型新工艺科技创新人才团队(黔科合平台人才[2017]5655)