Summary
Some mobile phase optimization methods have been used in developing a Reversed-Phase High-Performance Liquid Chromatography methodology for the determination of related impurities in bulk pharmaceutical steroids. Using two different approaches with binary and ternary mobile phase, the complete separation of 9-α-fluoroprednisolone acetate and its main potential impurities, at low concentration levels, has been achieved. This methodology may be applicable to other steroidal drugs and it is presented as an alternative to the thin-layer chromatography currently prescribed in official methods.
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Juárez, J.M., Bermejo, A., Bernal, J.L. et al. Application of HPLC mobile phase optimization methods to the detection of impurities in bulk drug steroids. Chromatographia 29, 338–346 (1990). https://doi.org/10.1007/BF02261300
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DOI: https://doi.org/10.1007/BF02261300