LC‐MS/MS determination of cinacalcet enantiomers in rat plasma on Chirobiotic V column in polar ionic mode: application to a pharmacokinetic study |
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Authors: | Nageswara Rao Ramisetti Sravan Bompelli |
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Affiliation: | Analytical Chemistry Division, Discovery Laboratory, Indian Institute of Chemical Technology, Hyderabad, India |
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Abstract: | A simple and selective polar ionic liquid chromatography–tandem mass spectrometric method for separation and determination of cinacalcet enantiomers in rat plasma was developed and validated. The chromatographic separation was accomplished on a Chirobiotic V column packed with vancomycin as a chiral stationary phase using 2.5 mm ammonium formate in 100% methanol as a mobile phase in an isocratic mode of elution at a flow rate of 1.0 mL/min. The analytes were extracted from rat plasma by precipitating the proteins with acetonitrile. The developed method exhibited a linear dynamic range over 0.5–500 ng/mL in rat plasma for both enantiomers. The method was successfully applied to study the pharmacokinetics after a single dose by oral administration of 10 mg/kg of cinacalcet enantiomers to healthy male Wistar rats. Copyright © 2014 John Wiley & Sons, Ltd. |
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Keywords: | cinacalcet enantiomers vancomycin polar ionic rat plasma |
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