Venkata Raju Y *, Sunitha G, Ashish Kumar Pal, Haripriya A, Sirisha N, Pani kumar AD.
Gokaraju Rangaraju College of Pharmacy, (affiliated to Osmania University), Bachupally, Nizampet road, Hyderabad, (Andhra Pradesh)-50009
Keywords: RP-HPLC, stability indicating, forced degradation.

A reverse phase stability indicating HPLC method was developed for the analysis of efavirenz bulk and pharmaceutical formulations. The developed method was also utilized for in-vitro dissolution studies of efavirenz formulations. Acetonitrile and acetate buffer pH 3.4 was the mobile phase (75:25% v/v), with retention time of 4.007 min at a flow rate of 1.5 mL/min detected at 292 nm wavelength. Linear regression analysis calibration plot showed an excellent linearity between response and concentration in the range of 50-300 µgmL-1. The regression co-efficient was 0.999 and the linear regression equation was y = 7780x+11159. Limits of detection (LOD) and quantification (LOQ) were 0.238 and 0.793 µgmL-1 respectively. The method was validated for accuracy, precision, specificity, robustness, detection and quantification limits, in accordance with ICH guidelines. The specificity of the method was ascertained by forced degradation studies by acid, alkali hydrolysis, oxidation and thermal degradation methods. The degraded products were well resolved from the analysis peak with significant differences at their retention time values. Wide linearity range, sensitivity, accuracy, short retention time and simple mobile phase indicate the method is suitable for routine quantification of efavirenz with high precision and accuracy.

Article Information

Identifiers and Pagination:
First Page:264
Last Page:272
Publisher Id:JAppPharm (2012 ). 4. 264-272
Article History:
Received:July 3, 2012
Accepted:September 22, 2012
Collection year:2012
First Published:October 1, 2012

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Editor in Chief
Prof. Dr. Cornelia M. Keck (Philipps-Universität Marburg)
Marburg, Germany


Welcome to the research group of Prof. Dr. Cornelia M. Keck in Marburg. Cornelia M. Keck is a pharmacist and obtained her PhD in 2006 from the Freie Universität (FU) in Berlin. In 2009 she was appointed as Adjunct Professor for Pharmaceutical and Nutritional Nanotechnology at the University Putra Malaysia (UPM) and in 2011 she obtained her Venia legendi (Habilitation) at the Freie Universität Berlin and was appointed as a Professor for Pharmacology and Pharmaceutics at the University of Applied Sciences Kaiserslautern. Since 2016 she is Professor of Pharmaceutics and Biopharmaceutics at the Philipps-Universität Marburg. Her field of research is the development and characterization of innovative nanocarriers for improved delivery of poorly soluble actives for healthcare and cosmetics. Prof. Keck is executive board member of the German Association of Nanotechnology (Deutscher Verband Nanotechnologie), Vize-chairman of the unit „Dermocosmetics“ at the German Society of Dermopharmacy, active member in many pharmaceutical societies and member of the BfR Committee for Cosmetics at the Federal Institute for Risk Assessment (BfR).

Journal Highlights
Abbreviation: J App Pharm
Frequency: Annual 
Current Volume: 9 (2017)
Next scheduled volume: December, 2018 (Volume 10)
Back volumes: 1-9
Starting year: 2009
Nature: Online 
Submission: Online  
Language: English

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