SELECTIVE FILTRATION OF CIGARETTE SMOKE USING CHITOSAN DERIVATIVES

摘要

A smoking article filter having a porous resin with a high surface area to mass ratio comprised of a chitosan derivative. PreferedPreferred embodiments include chitosan cross-linked with glutaraldehyde and chitosan cross-linked with glyoxal. The chitosan derivative provides for the selective filtration of cigarette smoke, particularly for the removal of aldehydes, hydrogen cyanide, heavy metals and carbonyls.