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The separation process in reversed-phase high-performance liquid chromatography employing C18 phases is mainly due to hydrophobic interactions. The separation of tocopherol isomers, exhibited by the(More)
Reversed-phase materials with branched and unbranched alkyl groups were prepared by modifying porous, spherical silica gel in a two-step reaction—immobilization of a trifunctional alkoxysilane(More)