STABILITY INDICATING RP-HPLC-PDA METHOD FOR DETERMINATION OF ABIRATERONE ACETATE AND CHARACTERIZATION OF ITS BASE CATALYZED DEGRADATION PRODUCT BY LC-MS
Journal Title: International Journal of Pharmacy and Pharmaceutical Sciences - Year 2016, Vol 8, Issue 2
Abstract
Objective: The present work describes stability indicating (SI) RP-HPLC-PDA method for determination of abiraterone acetate (ABA) and characterization of its base catalyzed degradation product by LC-MS.Methods: The separation was achieved by using column Kromasil C18 (250 mm × 4.6 mm, 4.0 µ) using acetonitrile (ACN): ammonium acetate buffer 10 mM, pH adjusted to 3.5 with acetic acid (AA) in the ratio of 10:90 % v/v as eluent. The Mobile phase flow rate was 0.6 ml/min and data integration was achieved at 235 nm.Results: The retention time of ABA was 5.4±0.01 min. Linearity was found to be in the range of 5–30 μg/ml. The limit of detection and quantitation were 0.25 μg/ml and 0.75 μg/ml respectively, and percentage recovery of ABA was found to be 99.52 to 100.13 %. Mass spectral data of base degraded product of ABA shows a prominent molecular ion peak at m/z-391.5. Major fragmentation leads to formation of 10–Methyl 2,3,4,7,8,9,10,11,12,13,14,15-dodecanhydro-1H cyclopenta (α)phenanthren-3-ol as a degradant (D2) at m/z-257.81, due to corresponding loss of C8H12ON. All the analytical validation parameters were determined and found in the limit as per ICH guidelines.Conclusion: The results of the various validation studies showed that the LC method is fast, specific, accurate, reproducible, possessed significant linearity and precision. The drug was found to be stable under all the stress conditions except basic stress. Thus developed method reported first time is novel with a very short run time of 6 min.Â
Authors and Affiliations
Gadhave R. V. , Tamnar A. B. , Bansode A. S. , Choudhari V. P.
Keywords
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