| Analysis of saikosaponins in rat plasma by anionic adducts-based liquid chromatography tandem mass spectrometry method. | |
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MedLine Citation:
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PMID: 21993856 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Saikosaponins (SSs) are a class of triterpene saponins with a wide spectrum of bioactivities. A sensitive liquid chromatography tandem mass spectrometry (LC-MS/MS) method was developed for simultaneous determination of saikosaponin a, saikosaponin c, saikosaponin d and saikosaponin b(2) in rat plasma. Plasma samples were prepared by liquid-liquid extraction. The analytes and the internal standard (IS) digoxin were well separated on an octadecyl column using gradient elution and analyzed by monitoring the fragmentation transition pair of anionic adducts to deprotonated molecules in negative-mode electrospray. By neutral loss of HCOOH, the transition pairs of m/z 825 → 779 for SSa, SSd, SSb(2) and the IS, and m/z 971 → 925 for SSc were sensitive for MS/MS detection with the lower limits of quantification in the range of 0.20-0.40 ng/mL. Method validation experiments were performed, including selectivity, precision, accuracy, linearity, matrix effect, recovery and stability. The validated method was further applied to determine the pharmacokinetics parameters of SSa, c and d in rats following a single oral administration of the extract of chaihu (the dried roots of Bupleurum chinense DC). Copyright © 2011 John Wiley & Sons, Ltd. |
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Authors:
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Lei Xu; Rui Song; Ji-Xin Tian; Yuan Tian; Guo-Qiang Liu; Zun-Jian Zhang |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-10-12 |
Journal Detail:
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Title: Biomedical chromatography : BMC Volume: - ISSN: 1099-0801 ISO Abbreviation: - Publication Date: 2011 Oct |
Date Detail:
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Created Date: 2011-10-13 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8610241 Medline TA: Biomed Chromatogr Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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Copyright © 2011 John Wiley & Sons, Ltd. |
Affiliation:
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Key Laboratory of Drug Quality Control and Pharmacovigilance, (China Pharmaceutical University), Ministry of Education, Nanjing , 210009, China; Center for Instrumental Analysis, China Pharmaceutical University, Nanjing , 210009, China. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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