Polymeric adsorbents of the affinity type in the investigation of physiologically active substances II. New approches to the separation, isolation, and purification of hydroxycoumarins

A comparison has been made of the chromatographic behaviors of the hydroxycoumarins and their derivatives on polymeric adsorbents of the affinity type with phenolic and polyphenolic ligands and with unmodified supports. It has been shown that it is desirable to study adsorbents in both the analytical and in the microsemipreparative regimes of liquid chromatography.