Binding Constants for Cyclodextrin Inclusions by Competitive Spectrofluorometry Involving 6-(p-Toluidino)naphthalene-2-sulfonate

Abstract

Binding constants of derivatized and simple β-cyclodextrins with a variety of inclusates were determined spectrofluorometrically through competition with 6-(p- toluidino )naphthalene- 2-sulfonate ( tns ). Inclusates in addition to tns were sodium alkane-1-sulfonates, sodium tetraphenylborate, sodium tetrafluoroborate, pyrazine and 4,4'-bipyridine.