Publication Date:
1994-11-01
Description:
Our previous work has demonstrated a relationship between polarity index and organic carbon referenced partition coefficients (Koc) of organic chemicals. Here we compare sorption of benzene, toluene, or o-xylene by protein with non-protein organic sorbents. Koc for benzene, toluene, or o-xylene sorption by collagen was much higher than by lignins, humic acid, chitin, or cellulose. Sorption of benzene, toluene, or o-xylene was not only influenced by organic sorbent polarity and functionality (e.g., aromaticity), but also by additional properties which we inferred related to physical conformation of the organic sorbents. In this respect, collagen exhibits unique sorptive behavior toward removal of nonpolar organic chemicals in the aqueous phase, which was not shared by humic acids of similar C, O or N content. Key words: Sorption, collagen, lignin, polarity, hydrophobic domains
Print ISSN:
0008-4271
Electronic ISSN:
1918-1841
Topics:
Geosciences
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Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
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