Document Detail

Validated LC-ESI-MS/MS method for simultaneous quantitation of felodipine and metoprolol in rat plasma: application to a pharmacokinetic study in rats.
MedLine Citation:
PMID:  23303553     Owner:  NLM     Status:  Publisher    
A highly sensitive and specific LC-ESI-MS/MS method has been developed and validated for simultaneous quantification of felodipine (FDP) and metoprolol (MPL) in rat plasma (50 μL) using phenacetin as an internal standard (IS) as per the FDA guidelines. Liquid-liquid extraction method was used to extract the analytes and IS from rat plasma. The chromatographic resolution of FDP, MPL and IS was achieved with a mobile phase consisting of 0.2% formic acid in water-acetonitrile (25:75, v/v) with a time program flow gradient on a C(18) column. The total chromatographic run time was 4.0 min and the elution of FDP, MPL and IS occurred at 1.05, 2.59 and 1.65 min, respectively. A linear response function was established for the range of concentrations 0.59-1148 and 0.53-991 ng/mL for FDP and MPL, respectively, in rat plasma. The intra- and inter-day accuracy and precision values for FDP and MPL met the acceptance as per FDA guidelines. FDP and MPL were stable in battery of stability studies viz., bench-top, auto-sampler and freeze-thaw cycles. The validated assay was applied to a pharmacokinetic study in rats. Copyright © 2013 John Wiley & Sons, Ltd.
Raja Reddy Kallem; Mullangi Ramesh; J V L N Seshagirirao
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-1-10
Journal Detail:
Title:  Biomedical chromatography : BMC     Volume:  -     ISSN:  1099-0801     ISO Abbreviation:  Biomed. Chromatogr.     Publication Date:  2013 Jan 
Date Detail:
Created Date:  2013-1-10     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 © 2013 John Wiley & Sons, Ltd.
College of Pharmaceutical Sciences, Andhra University, Visakhapatnam, -530 003, India.
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