ELECTRO-SPUN FIBERS AND APPLICATIONS THEREOF

摘要

A supported nanofiber medium useful for segregating chemical species is provided by selecting a polymer, selecting a substrate; and electrospinning the polymer to form a nanofiber medium on the supporting substrate. When the substrate is a planar surface, the nanofiber medium will be a mat suitable for conducting chromatographic separation. When the substrate is a filament, the nanofiber medium is an annular mat suitable for solid phase microextraction. The nanofiber media formed may be selectively cross-linked and at least partially carbonized to carbon nanofibers. The nanofiber medium is supported on the substrate without the use of binder material.

主权项

1. A method for analytically separating at least two chemical species, comprising the steps of:
providing a separation medium, comprising a mat of nanofibers disposed on a surface of a substrate; providing at least two chemical species, mixed together in an appropriate solvent; and separating the at least two chemical species from each other through contact of the mixture with the separation medium.