ADSORPTION CHROMATOGRAPHY ON CELLULOSE .14. SOME RESULTS USING AQUEOUS-SOLUTIONS OF SOLUBLE CYCLODEXTRIN POLYMERS AS ELUENTS

Commercial alpha-, beta- and gamma-cyclodextrin polymers were examined for their eluent properties in adsorption chromatography on cellulose thin layers using aqueous solvents. Azo dyes were found to be eluted better by the polymers than by a solution of alpha-cyclodextrin. Chlor oauric acid (HAuCl4) was eluted on the liquid front by polymers but no t by alpha-cyclodextrin. No improvement could be seen in the separatio n of tryptophan enantiomers compared with alpha-cyclodextrin, alpha-Cy clodextrin (monomer) yields much better separations than any of the po lymers. Attempts to use the polymers as non-specific desorbing agents for coloured inks were unsuccessful.