Reduction of the volatility of volatile organic compounds with cyclodextrins: application to their capture
Fourmentin, S.; Landy, D.; Leyssens, G.; Surpateanu, G.
Annales Pharmaceutiques Francaises 59(6): 369-373
2001
ISSN/ISBN: 0003-4509 PMID: 11924509 Document Number: 535105
The interactions existing between beta-cyclodextrin, hydroxypropyl-beta-cyclodextrin and six volatile organic compounds (VOC) were studied and used for capture of such pollutants. The reduction of volatility for these VOC appeared to be equivalent for the two kinds of cyclodextrins at equal concentrations, while a higher solubility conferred higher efficiency to hydroxypropyl-beta-cyclodextrin. The use of such cyclodextrins in traps allowed a two-fold increase in VOC capture compared with genuine water. Application of this process to an industrial site showed its efficacity qualitatively while several optimization procedure are needed to achieve quantitative efficacy.