ISSN

0974-4150 (Online)
0974-4169 (Print)


Author(s): T. Krishnamohan, G. lalitha, Ramakant V. Sharma, L. Sambasivarao, J. Moses babu, Mohammad Younus, Aluri Solomon Raju, Y.L.N.Murthy

Email(s): krishnamohant@drreddys.com

DOI: Not Available

Address: T. Krishnamohan1*, G. lalitha1, Ramakant V. Sharma1, L. Sambasivarao1, J. Moses babu1, Mohammad Younus2, Aluri Solomon Raju3, Y.L.N.Murthy3
1Dr. Reddy’s Laboratories Ltd, Hyderabad, Andhra Pradesh, India
2Chandra Labs, Hyderabad, Andhra Pradesh, India
3Andhra University, Vishakhapatnam, Andhra Pradesh, India
*Corresponding Author

Published In:   Volume - 5,      Issue - 7,     Year - 2012


ABSTRACT:
Objective: Lansoprazole is a proton pump inhibitor which prevents the stomach from producing acid. Lansoprazole contains not more than 0.7% of total impurities of which Sulphone (related compound A) is 0.3%, N-Oxide (related compound B) is 0.1%, Sulphide (related compound C) is 0.1% and any other unknown impurities 0.1%. The aim of the present investigation is to develop a precise and accurate method for the separation and quantification of related substances present with Lansoprazole using Ultra high pressure Liquid Chromatography (UHPLC). Materials and Methods: The separation was achieved on Hypersil Gold C18, (2.1 x 100 mm, 1.8 µ) column. Solvent A water and solvent B acetonitrile: water: tryethylamine (80: 20: 0.005), the pH of the solvent B adjusted to 7 with ortho phosphoric acid were used as gradient elution mobile phase components. The flow rate was set at 0.3 mL/min and eluent was monitored at 285 nm. The method was validated as per ICH guidelines. Results: All related substances were well separated from Lansoprazole in optimized chromatographic conditions. Linearity of the method was studied between 25%-150% targeted concentration regression coefficients found to be as 0.9996, 9991, 09998 and 09995 for N-Oxide, Sulphone, Sulphide and Lansoprazole respectively. % Relative Standard Deviation (%RSD) for Precision, Recovery studies, Accuracy studies at quantification level was less than 2. Conclusions: The developed method is linear, accurate, precise, robust and specific, being able to separate the related substances from Lansoprazole. It may find application for the routine analysis of the related substances of Lansoprazole.


Cite this article:
T. Krishnamohan, G. lalitha, Ramakant V. Sharma, L. Sambasivarao, J. Moses babu, Mohammad Younus, Aluri Solomon Raju, Y.L.N.Murthy. Method Development and Validation for Estimation of Related Compounds Present in Lansoprazole Bulk Drug by Ultra High Pressure Liquid Chromatography. Asian J. Research Chem. 5(7): July, 2012; Page 859-865.


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