| 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. |
| Genre: | Article |
| ProdID: | 70020914 |
| Citation Author: | Westerhoff, P.; Debroux, J.; Aiken, G.; Amy, G. |
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| Citation End Page: | 570 |
| Citation Issue: | 6 |
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| Citation Language: | English |
| Citation Larger Work Title: | Ozone: Science and Engineering |
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| Citation Number Of Pages: | 20 |
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| Citation Publisher: | CRC Press LLC |
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| Citation Search Results Text: | Ozone-induced changes in natural organic matter (NOM) structure; 1999; Article; Journal; Ozone: Science and Engineering; Westerhoff, P.; Debroux, J.; Aiken, G.; Amy, G. |
| Citation Start Page: | 551 |
| Citation Volume: | 21 |
| Citation Year: | 1999 |
| Type: | citation/reference |
| Text: | Ozone-induced changes in natural organic matter (NOM) structure; 1999; Article; Journal; Ozone: Science and Engineering; Westerhoff, P.; Debroux, J.; Aiken, G.; Amy, G. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Fri, 1 Jan 1999 00:00 -0600 |
| Publisher: | CRC Press LLC |
