| Abstract: | A useful procedure has been developed which utilizes adsorption chromatography followed by size-exclusion chromatography, hydrogen saturation by ion exchange, and lypholization to obtain low-ash aqueous humic substances. The preparative concentration of aquatic humic substances is done by multiple reconcentration procedures even though initial concentrations of aqueous humus may be less than 25 ??g/L. The procedure yields concentration factors of 25 000 times for both humic and fulvic acid in water. |
| Genre: | Article |
| ProdID: | 70011717 |
| Citation Author: | Thurman, E. M.; Malcolm, R. L. |
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| Citation End Page: | 566 |
| Citation Issue: | 4 |
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| Citation Language: | English |
| Citation Larger Work Title: | Environmental Science and Technology |
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| Citation Number Of Pages: | 104 |
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| Citation Search Results Text: | Preparative isolation of aquatic humic substances; 1981; Article; Journal; Environmental Science and Technology; Thurman, E. M.; Malcolm, R. L. |
| Citation Start Page: | 463 |
| Citation Volume: | 15 |
| Citation Year: | 1981 |
| Type: | citation/reference |
| Text: | Preparative isolation of aquatic humic substances; 1981; Article; Journal; Environmental Science and Technology; Thurman, E. M.; Malcolm, R. L. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Thu, 1 Jan 1981 00:00 -0600 |
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