Ultra-performance liquid chromatography-tandem mass spectrometry method for the determination of nitrendipine in dog plasma and its application to a pharmacokinetic study of a solid self-emulsifying pellet formulation

Yanhua Liu; Zhiyuan Wang; Jin Sun; Yongjun Wang; Zhonggui He

doi:10.1055/s-0031-1300586

Arzneimittelforschung, Table of Contents

Arzneimittelforschung 2011; 61(12): 674-680
DOI: 10.1055/s-0031-1300586

Cardiac Drugs · Cardiac Stimulants · Coronary Drugs

Editio Cantor Verlag Aulendorf (Germany)

Ultra-performance liquid chromatography-tandem mass spectrometry method for the determination of nitrendipine in dog plasma and its application to a pharmacokinetic study of a solid self-emulsifying pellet formulation

Authors

Yanhua Liu

¹Department of Biopharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, P. R. China

²Department of Pharmaceutics, School of Pharmacy, Ningxia Medical University, Ningxia, P. R. China
Zhiyuan Wang

¹Department of Biopharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, P. R. China
Jin Sun

¹Department of Biopharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, P. R. China
Yongjun Wang

¹Department of Biopharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, P. R. China
Zhonggui He

¹Department of Biopharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, P. R. China

Abstract

A rapid, sensitive and selective ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) method was developed and validated for the quantitative determination of nitrendipine (NTD, CAS 39562-70-4) in dog plasma. Using propranolol hydrochloride (CAS 318-98-9) as an internal standard (IS), plasma samples pretreatment adopted a simple liquid-liquid extraction process with diethyl ether. Separation was carried out by a gradient elution on an Acquity UPLC BEH C₁₈ column with a mobile phase consisting of water (containing 0.1% formic acid) and acetonitrile. Detection was performed by a triple-quadrupole mass spectrometry with positive electrospray ionization (ESI) as source ionization in multiple-reaction monitoring (MRM) mode at m/z 361.0 → 315.0 for NTD and m/z 260.2 → 116.0 for IS. The method demonstrated good linearity at the concentrations ranged from 0.1–200 ng/mL and the lower limit of quantification (LLOQ) of NTD was 0.1 ng/mL. The intra- and inter-day relative standard deviations (RSD) were less than 10%. The mean extraction recoveries of NTD and IS were 90.2% and 82.4%, respectively. Finally, the method was successfully applied to a pharmacokinetic study of home-made solid self-emulsifying pellets and conventional NTD tablets in beagle dogs following a single oral administration.

Key words

Liquid-liquid extraction - Nitrendipine - Pharmacokinetic study - Solid self-emulsifying pellets - UPLC-MS/MS

Full Text

References

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