化学
重复性
色谱法
糖苷
环烯醚萜
检出限
立体化学
作者
Fan Zhang,Yu Yan,Jie‐Kun Xu,Linmei Zhang,Li Li,Xin Chen,Dongxu Li,Ying Peng,Hua Yang,Lingzhi Li,Jun He,Jiang Zheng,Wei‐Ku Zhang
出处
期刊:Journal of Chromatographic Science
[Oxford University Press]
日期:2023-10-23
卷期号:62 (6): 562-569
标识
DOI:10.1093/chromsci/bmad083
摘要
Abstract Fructus Corni (F. Corni) is the dried mature pulp of Cornus officinalis Sieb. et Zucc.(Cornaceae), which is rich in iridoids. In this study, a simple, sensitive and rapid UPLC–MS/MS method was developed for the simultaneous determination of 13 iridoid glycosides of F. Corni from different areas. Specifically, we included five new compounds (cornusdiridoid C, cornusdiridoid E, cornusdiridoid F, 3′′,5′′-dehydroxycornuside and 2′-O-p-coumaroyl-kingiside) and isomers (2′-O-p-E-coumaroylloganin and 2′-O-p-Z-coumaroylloganin) for the first time in the quality markers of F. Corni. A total of 13 compounds and two pairs of isomers were well isolated and tested within just 14 min. All calibration curves showed good linear regression (r2 ≥ 0.99) within the tested concentration ranges. The limit of detection and limit of quantification were in the range of 0.19–1.90 and 0.38–3.76 ng/mL, respectively. The intra-day and inter-day precision were <3.21% and 12.49%, the RSD values of repeatability did not exceed 6.81% and the average recoveries were 90.95–113.59% for the analytes. All iridoid glycosides stabilized within 12 h (RSD < 10.99%). This method has been successfully applied to the quality evaluation of crude and processed F. Corni from different areas. The determination of characteristic iridoid glycosides and isomers will provide a more reliable and comprehensive method for the evaluation of F. Corni.
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