Coupled microcolumn size-exclusion liquid chromatography–capillary supercritical fluid chromatography

Abstract
Fractions of the eluate from a packed capillary size-exclusion column were selectively transferred via a solvent-vented interface to an open tubular capillary supercritical fluid chromatography column. The system was evaluated for use with mixtures of polymers and additives, edible oils contaminated with polymer additives, and agrochemicals in natural products.