SOLUBILIZATION OF POLYCYCLIC AROMATIC-HYDROCARBONS BY BETA-CYCLODEXTRIN AND CARBOXYMETHYL-BETA-CYCLODEXTRIN

Authors
GAO SX WANG LS HUANG QG HAN SK
Citation
Sx. Gao et al., SOLUBILIZATION OF POLYCYCLIC AROMATIC-HYDROCARBONS BY BETA-CYCLODEXTRIN AND CARBOXYMETHYL-BETA-CYCLODEXTRIN, Chemosphere (Oxford), 37(7), 1998, pp. 1299-1305
Citations number
12
Categorie Soggetti
Environmental Sciences
Journal title
Chemosphere (Oxford) → ACNP
ISSN journal
00456535
Volume
37
Issue
7
Year of publication
1998
Pages
1299 - 1305
Database
ISI
SICI code
0045-6535(1998)37:7<1299:SOPABB>2.0.ZU;2-8
Abstract
The solubilization of six polycyclic aromatic hydrocarbons(PAHs) by be ta-cyclodextrin and carboxymethyl-beta-cyclodextrin(CMCD) has been inv estigated. The presence of beta-CD and CMCD greatly enhance the solubi lity of PAHs in water. The solubilization effect of cyclodextrins is c aused by formation of inclusion complexes of PAHs with cyclodextrin. T he degree of solubilization power is related to the ''fit'' of PAH str ucture within the cavity of beta-CD or CMCD. The better the fit of the molecule, the greater the solubilization power. beta-CD shows higher solubilization power than CMCD at low concentration. (C) 1998 Elsevier Science Ltd. All rights reserved.