Abstract
Head-space gas chromatography has been used to study thesolubilization of synthetic perfumes by nonionic surfactants and by sulfoalkyl etherβ-cyclodextrins. This study shows that the addition of nonionic surfactants reducesthe vapor pressure of these perfumes due to reduction of the free perfume concentrationin water caused by partition of the solute between surfactant micelles and water.The relationship between solubilization capacity of nonionic surfactants andcharacteristics of both the surfactant and the synthetic perfumes was evaluated. Similarvapor pressure reduction also observed in perfumes in sulfoalkyl etherβ-cyclodextrins. The stability of the inclusion complexes depends on the structures of bothperfume molecules and substitution group on sulfoalkyl ether β-cyclodextrins.The results also indicated that in some cases there may be more than one perfumemolecule included in a β-CD molecule while there is no indication of complexesformed between more than one β-CD molecule and a single perfume molecule.
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