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Isocratic liquid chromatographic method for the analysis of roxithromycin and structurally related substances in bulk samples

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Summary

A selective, repeatable, and robust isocratic liquid chromatographic method has been developed for the analysis of bulk samples of roxithromycin, a semi-synthetic macrolide antibiotic. The method involves the use of XTerra RP18 as stationary phase and acetonitrile-2.0m (NH4)2HPO4, pH 6.4-water, 25∶30∶45, (v/v) as mobile phase, delivered at a flow rate of 1.0 mL min−1. Detection was by UV absorbance at 215 nm. Sufficient separation of roxithromycin from its homolog containing one more methyleneoxy group (roxithromycin G) and from other related substances was achieved. The robustness of the method was evaluated by means of a full-factorial experimental design.

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Authors and Affiliations

  1. Laboratorium voor Farmaceutische Chemie en Analyse van Geneesmiddelen, Faculteit Farmaceutische Wetenschappen, Katholieke Universiteit Leuven, Van Evenstraat 4, 3000, Leuven, Belgium

    H. K. Chepkwony, F. N. Kamau, E. Rodriguez, E. Roets & J. Hoogmartens

Authors
  1. H. K. Chepkwony
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  2. F. N. Kamau
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  3. E. Rodriguez
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  4. E. Roets
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  5. J. Hoogmartens
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Chepkwony, H.K., Kamau, F.N., Rodriguez, E. et al. Isocratic liquid chromatographic method for the analysis of roxithromycin and structurally related substances in bulk samples. Chromatographia 54, 725–729 (2001). https://doi.org/10.1007/BF02492490

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  • DOI: https://doi.org/10.1007/BF02492490

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