摘要
目的：建立并验证同时测定红景天（Rhodiola）提取物中红景天苷、红景天素、草质素苷、草质素、山柰酚和槲皮素6种活性成分含量的UPLC-MS/MS方法。方法色谱条件：采用Zorbax Eclipse plus C18色谱柱（100 mm×2.1 mm，3.5μm）；0.2%甲酸水-乙腈为流动相，洗脱方式为梯度洗脱；流速为0.4 ml/min；柱温为25℃。质谱条件：采用电喷雾离子源（ESI），负离子检测，扫描方式为多反应监测模式（MRM）。结果6种活性成分分别在10～20000，10～4000、10～4000、5～2000、10～2000和5～2000 ng/ml之间线性关系良好。仪器精密度RSD＜3.31%，6种活性成分的稳定性RSD＜5.07%，重复性RSD＜4.05%，平均回收率在99.27%～108.91%，RSD均＜4.92%。结论本法可同时测定红景天提取物中6种活性成分含量，具有快速、灵敏度高、专属性好，重复性好的特点。
Objective To develop and fully validate an UPLC-MS/MS method for simultaneous quantification of six active in-gredients in Rhodiola extract including salidroside,rhodiosin,rhodionin,herbacetin,kaempferol and quercetin. Methods The chro-matographic separation of the analytes was achieved by using Zorbax Eclipse plus C18 column（2.1 mm×100 mm,3.5μm）. The mobile phase consisted of 0.2%aqueous formic acid and acetonitrile. Analytes were separated using a linear gradient with a flow rate of 0.4 ml/min. The column temperature was set at 25℃. The mass spectrometric conditions were electrospray negative ionization（ESI）and the scan-ning mode was multi reaction monitoring（MRM）. Results The calibration curves of the six active ingredients were linear over 10-20000,10-4000,10-4000,5-2000,10-2000,and 5-2000 ng/ml concentration ranges,respectively. The RSD of the instrument precision was within 3.31%. The current assay was stable and reproducible in quantification of all analytes with RSD within 5.07%and 4.05%,respectively. The average recovery of all analytes was in a range from 99.27%to 108.91%,with an acceptable RSD of no more than 4.92%. Conclusion The UPLC-MS/MS method could be successfully applied to simultaneously quantifying six major active in-gredients in Rhodiola extract with the acceptable specificity,sensitivity and reproducibility.
出处
《国际药学研究杂志》
CAS
CSCD
北大核心
2016年第5期975-979,共5页
Journal of International Pharmaceutical Research
基金
国家自然科学基金资助项目(81573683)
