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A simple, sensitive and straightforward LC-MS approach for rapid analysis of three potential genotoxic impurities in rabeprazole formulations.

08:00 EDT 23rd August 2018 | BioPortfolio

Summary of "A simple, sensitive and straightforward LC-MS approach for rapid analysis of three potential genotoxic impurities in rabeprazole formulations."

In the present study a sensitive and fully validated liquid chromatography-mass spectrometry method was developed for the quantification of three potential genotoxic impurities in rabeprazole drug substance. The separation was achieved on Symmetry C18 column (100 × 4.6 mm, 3.5 μm) using 0.1% formic acid in water as mobile phase A, and acetonitrile as mobile phase B in gradient elution mode at 0.5 mL/min flow rate. Triple quadrupole mass detection with electrospray ionization was operated in selected ion recording mode for the quantification of impurities. The calibration curves were demonstrated good linearity over the concentration range of 1.0-4.5 ppm for O-phenylenediamine, 1.8-4.5 ppm for 4-nitrolutidine-N-oxide and 1.0-4.5 ppm for benzyltriethylammonium chloride with respect to 10 mg/mL of rabeprazole. The correlation coefficient obtained in each case was > 0.998. The recoveries were found satisfactory over the range between 94.22%-106.84% for all selected impurities. The method validation was carried out following ICH guidelines, from which the developed method was able to quantitate the impurities at 1.0 ppm for O-phenylenediamine, 1.8 ppm for 4-nitrolutidine-N-oxide and 1.0 ppm for benzyltriethylammonium chloride. Furthermore, the proposed method was successfully evaluated for the determination of selected impurities from bulk drug and formulation samples of rabeprazole within the acceptable limits. This article is protected by copyright. All rights reserved.

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This article was published in the following journal.

Name: Journal of separation science
ISSN: 1615-9314
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