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Quantitative determination of rupestonic acid in rat plasma by high-performance liquid chromatography-tandem mass spectrometry and its application in a pharmacokinetic study.
MedLine Citation:
PMID:  23037995     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
A sensitive and specific high-performance liquid chromatography-electrospray ionization-tandem mass spectrometry (HPLC-ESI-MS/MS) method was developed and validated for determination of rupestonic acid in rat plasma. Protein precipitation method was used to extract rupestonic acid and the internal standard (IS) warfarin sodium from rats plasma. The chromatographic separation was performed on an Agela Venusil XBP Phenyl column with an isocratic mobile phase consisting of methanol-0.1% formic acid in water (40:60, v/v), pumped at 0.4 mL/min. Rupestonic acid and the internal standard (IS) warfarin sodium were detected at m/z 247.2 → 203.1 and 307.1 → 161.3 in positive ion and multiple reaction monitoring mode respectively. The standard curves were linear over the concentration range of 2.5-5000 ng/mL (r(2)  > 0.99). The within-day and between-day precision values for rupestonic acid at four concentrations were 4.7-5.7 and 4.4-8.7%, respectively. The method described herein was fully validated and successfully applied to the pharmacokinetic study after an intravenous administration of rupestonic acid in rats. Copyright © 2012 John Wiley & Sons, Ltd.
Authors:
Zhengyi Gu; Jinhua He; Xi Yang; Xianyi Sha
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-10-5
Journal Detail:
Title:  Biomedical chromatography : BMC     Volume:  -     ISSN:  1099-0801     ISO Abbreviation:  Biomed. Chromatogr.     Publication Date:  2012 Oct 
Date Detail:
Created Date:  2012-10-5     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8610241     Medline TA:  Biomed Chromatogr     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012 John Wiley & Sons, Ltd.
Affiliation:
Xinjiang Institute of Materia Medica, Lane 140, South Xinhua Road, Xinjiang, Urumqi, 830004, China.
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