Adsorption studies of xylenes and ethylbenzene on soil and humic acid by a purge and trap gas chromatographic method
Date of Original Version
A purge and trap gas chromatographic technique has been used to study the adsorption of xylene isomers and ethylbenzene from aqueous solution (ppb) onto a soil and solid phase humic acid. Experiments were performed to examine the effects of concentration, time of contact, pH and type of organic carbon on the adsorption behavior. Humic acid adsorbed much higher amounts of hydrocarbons ranging from 40 to 77 times greater than the soil. The association constants for the xylenes and humic acid were identical, and a comparison of these data with those of others suggests that this interaction was hydrophobic in nature and not site specific for compounds of similar molecular structures. © 1989.
Publication Title, e.g., Journal
Kango, Reyaz A., and James G. Quinn. "Adsorption studies of xylenes and ethylbenzene on soil and humic acid by a purge and trap gas chromatographic method." Chemosphere 19, 8-9 (1989). doi: 10.1016/0045-6535(89)90074-X.