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Open Access Simultaneous determination of five triterpenoid saponins in different parts of Lonicera macranthoides by RRLC-MS/MS method

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A rapid resolution liquid chromatography-tandem mass spectrometry (RRLC-MS/MS) method was developed and validated for the determination of five major saponins (macranthoidin B, macranthoidin A, dipsacoside B, akebiasaponin D, and dipsacoside A) in the flower bud, stem, and leaf parts of Lonicera macranthoides. Chromatographic separation was performed on a ZORBAX SB-C18 column (2.1 × 50 mm, 1.8 μm). Acetonitrile and 0.1% aqueous formic acid were adopted as mobile phase. Detection was carried out on a triple quadrupole mass spectrometer in the negative ion mode using an electrospray source. Multiple reaction monitoring (MRM) mode was employed. The established method showed good linearity (r2 ≥ 0.9994) for all the analytes within the test ranges and the recoveries were 95.19–103.28% . Desirable intra-day and inter-day precision as well as repeatability were obtained with relative standard deviations (RSDs) less than 5%. The method was simple, sensitive, accurate and performed well in application to the sample determination within a short analysis time of 15 min. The saponin profiles of different parts of Lonicera macranthoides were obtained based on the quantitative data, showing that the flower bud contained much higher level of saponins than the stem and leaf by several orders of magnitude, and that the quantity ratios varied remarkable between these three part. The conclusions might provide scientific evidences for the reasonable application of Lonicera macranthoides, and the proposed RRLC-MS/MS method might be useful for the quality control of this medicinal plant.

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Document Type: Research Article

Publication date: June 1, 2016

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  • Pharmazie is a leading journal in the field of pharmaceutical sciences. As a peer-reviewed scientific journal, Pharmazie is regularly indexed in the relevant databases like Web of science, Journal Citation Reports and many others. The journal is open for submissions from the whole spectrum of pharnaceutical sciences including Pharmaceutical Chemistry, Experimental and Clinical Pharmacology, Drug Analysis, Pharmaceutics, Pharmaceutical Biology, Clinical Pharmacy etc.
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