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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

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

Arzneimittelforschung. 2011;61(12):674-80.

PMID: 22282953

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.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP3506090	(±)-Propranolol, Hydrochloride - CAS 3506-09-0		3506-09-0	Price

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