Ozone-induced changes in natural organic matter (NOM) structure
Ozone: Science and Engineering
By: P. Westerhoff, J. Debroux, G. Aiken, and G. Amy
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Abstract
Hydrophobic organic acids (combined humic and fulvic acids), obtained from an Antarctic Lake with predominantly microbially derived organic carbon sources and two US fiver systems with terrestrial organic carbon sources, were ozonated. Several analyses, including 13C-NMR, UV absorbance, fluorescence, hydrophobic/transphilic classification, and potentiometric titrations, were performed before and after ozonation. Ozonation reduced aromatic carbon content, selectively reducing phenolic carbon content. Ozonation of the samples resulted in increased aliphatic, carboxyl, plus acetal and ketal anomeric carbon content and shifted towards less hydrophobic compounds.Hydrophobic organic acids (combined humic and fulvic acids), obtained from an Antarctic Lake with predominantly microbially derived organic carbon sources and two US river systems with terrestrial organic carbon sources, were ozonated. Several analyses, including 13C-NMR, UV absorbance, fluorescence, hydrophobic/transphilic classification, and potentiometric titrations, were performed before and after ozonation. Ozonation reduced aromatic carbon content, selectively reducing phenolic carbon content. Ozonation of the samples resulted in increased aliphatic, carboxyl, plus acetal and ketal anomeric carbon content and shifted towards less hydrophobic compounds.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Ozone-induced changes in natural organic matter (NOM) structure |
| Series title | Ozone: Science and Engineering |
| Volume | 21 |
| Issue | 6 |
| Year Published | 1999 |
| Language | English |
| Publisher | CRC Press LLC |
| Publisher location | Boca Raton, FL, United States |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Ozone: Science and Engineering |
| First page | 551 |
| Last page | 570 |
| Google Analytic Metrics | Metrics page |