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Photodegradation kinetic study and stability-indicating assay of danazol using high-performance liquid chromatography
E A Kariem1, M A Abounassif, M E Hagga
1Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia.
Journal of Pharmaceutical and Biomedical Analysis
|August 10, 2000
Abstract:
A selective high-performance liquid chromatographic procedure for the stability-indicating determination of danazol in the presence of its photolytic degradation products is demonstrated. The photolysis was carried out in glass vials and quartz cell under UV light at 254 nm. Satisfactory results were obtained for the assay and recovery testing with RSD values less than 2%. Kinetic parameters evaluated comprise the order of reaction and the rate constants of the degradation of the danazol irradiated in glass vials or quartz cell.