Abstract: The present invention provides a chromatography carrier which can recover aromatic compounds such as PCB and polycyclic aromatic hydrocarbon from other substances specifically and quickly using small amounts of the carrier and an organic solvent, a chromatography column packed with the carrier and a method for efficiently separating organic compounds such as PCB and polycyclic aromatic hydrocarbon using the column. According to the present invention, the chromatography carrier is constructed by directly immobilizing an organic group comprising sulfoxide represented by the following formula (1) to an organic solvent-insoluble support via covalent bond or ionic bond: R1—SO—R2—??(1) wherein R1 represents alkyl having from 1 to 3 carbon atoms, and R2 a divalent hydrocarbon group having from 1 to 10 carbon atoms.

Abstract: A medical composition for external use comprising a proline ester represented by formula (I): ##STR1## wherein R.sub.1 and R.sub.2 are as defined in the specification, or a prolinol ester represented by formula (II): ##STR2## wherein R.sub.3 and R.sub.4 are as defined in the specification. The composition enhances percutaneous penetration absorption of an active ingredient to be combined therewith.