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Supercritical Nitrogen Processing for the Purification of Reactive Porous Materials
Published on: May 15, 2015
Development of supercritical fluid extraction coupled to comprehensive two-dimensional supercritical fluid
1School of Materials Science, Toyohashi University of Technology, Toyohashi.
Abstract:
Supercritical fluid extraction was coupled to comprehensive two-dimensional supercritical fluid chromatography with conventional packed columns. With this system, three modes of operations were feasible, such as SFE-SFC, SFCxSFC, and SFE-SFCxSFC. The operations for valve switching and data acquisition were automated using in-house software. In order to evaluate the present system, SFE-SFC for polymer additives in polypropylene, SFCxSFC for a mixture of benzene derivatives with different polarities, and SFE-SFCxSFC for styrene oligomers in polystyrene were performed. With SFE-SFCxSFC, diastereomers were resolved for linear tetramers and pentamers as well as trimers with the tetraline moiety.
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