Summary
The performance of a HSA-based HPLC column has been improved by modulating the binding properties of the anchored protein using lithocholic acid as a selective modifier in the mobile phase. In particular, retention decreased for both drugs binding to sites I or II, while the enantioselectivity was maintained for most analytes. The advantages of using lithocholic acid in the mobile phase were impressive in the case of profens, for which a considerable reduction in analysis time and a significant increase in enantioselectivity were obtained. The results were rationalized by considering lithocholic acid as a direct competitor for site II binding drugs and indirect competitor for site I binding drugs.
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Bertucci, C., Andrisano, V., Gotti, R. et al. Modulation of chromatographic performances of HSA-based HPLC column by reversible binding of lithocholic acid. Chromatographia 53, 515–518 (2001). https://doi.org/10.1007/BF02491614
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DOI: https://doi.org/10.1007/BF02491614