Simultaneous quantitation of five Panax notoginseng saponins by multi heart-cutting two-dimensional liquid chromatography: Method development and application to the quality control of eight Notoginseng containing Chinese patent medicines.
Simultaneous quantitation of five Panax notoginseng saponins by multi heart-cutting two-dimensional liquid chromatography: Method development and application to the quality control of eight Notoginseng containing Chinese patent medicines.
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DOI：
10.1016/j.chroma.2015.05.015
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发表时间：
2015-07
期刊：
影响因子：
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通讯作者：
Chang-liang Yao;Wen-zhi Yang;Wanwei Wu;Juan Da;Jinjun Hou;Jing-xian Zhang;Yanhai Zhang;Yan Jin;Min Yang;B. Jiang;Xuan Liu;D. Guo
中科院分区：
文献类型：
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作者：
Chang-liang Yao;Wen-zhi Yang;Wanwei Wu;Juan Da;Jinjun Hou;Jing-xian Zhang;Yanhai Zhang;Yan Jin;Min Yang;B. Jiang;Xuan Liu;D. Guo
Current China Pharmacopoeia (ChP) standards employ diversified and case-dependent assay methods to evaluate the quality of different Chinese patent medicines (CPMs) that containPanax notoginsengas the monarch drug. These conventional, HPLC-based approaches, utilizing a complex sample preparation procedure, can easily result in low analytical efficiency and possible component loss. Here, a “monomethod-heterotrait matrix” (MHM) strategy is proposed, that is, developing a universal multi heart-cutting two-dimensional liquid chromatography (MHC-2D-LC) approach that facilitates the simultaneous quantitation of fiveP. notoginsengsaponins (noto-R1, Re, Rg1, Rb1, and Rd) in eight different CPMs. The MHC-2D-LC system was constructed on a dual-gradient liquid chromatography instrument equipped with a Poroshell SB C18 column and a Zorbax SB-Aq column for respective1D and2D separation. Method validation was performed in terms of specificity, linearity (r2andF-test), intra-/inter-day precision (0.4–7.9%), stability (1.2–3.9%), and recovery (90.2–108.7%), and the LODs and LOQs (loaded masses) of the five analytes varied between 4.0–11.0 ng and 6.0–33.0 ng, respectively. The validated MHC-2D-LC approach was subsequently applied to quantify the five saponins in thirty batches of different CPMs. The method demonstrated superiority over the current ChP assay methods in respect of specificity (avoiding co-elution), resolution (Rs> 1.5), sample preparation (easy-to-implement ultrasonic extraction without repeated re-extraction), and transfer rate (minimum component loss). This is the first application of an MHC-2D-LC method for the quantitative assessment of the constituents of CPMs. The MHM approach represents a new, strategically significant methodology for the quality control of CPMs that involve complex chemical matrix.
