1Matrix Laboratories Ltd., R and D centre, Jinnaram mandal, Medak, 502325, India
2National Centre for Mass Spectrometry, Indian Institute of Chemical Technology, Hyderabad, 500 007, India
3Department of Chemistry, P.G. College of Science, Saifabad, Hyderabad, India
*Corresponding Author E-mail: yogeshwar.mamilla@matrixlabsindia.com
Online published on 13 March, 2013.
A sensitive gas chromatography (GC)-mass spectrometry (MS) method is developed and validated for the determination of the residues p-Anisidine and 4-Methoxy-2-nitro aniline as genotoxic impurities in Esomeprazole magnesium drug substance.
GC-MS, Esomeprazole, Selected ion monitoring