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Humic matter fraction ultrafiltration

Lee S. et al., Determination of mass transport characteristics for natural organic matter (NOM) in ultrafiltration (UF) and nanofiltration (NF) membranes. Water Sci. Technol. Water Sttppl, 2,151,2002. Li, L. et al.. Characterization of humic acids fractionated by ultrafiltration, Org. Geochem., 35, 1025, 2004. [Pg.447]

A variety of spectroscopic techniques have been applied to DOC isolated from seawater by cross-flow ultrafiltration or adsorption onto XAD resins. The two techniques isolate very different organic fractions from seawater. Hydrophobic fractions (such as marine humic material) are isolated on XAD resins [48], whereas the organic matter extracted by ultrafiltration is retained primarily on the basis of its molecular size and shape [49], resulting in isolates rich in nitrogen and carbohydrates (polysaccharides). Nuclear magnetic resonance (NMR) spectroscopy has proven successful in distinguishing between the specific structures of XAD-bound humics and the carbohydrates concentrated into colloidal size fractions. [Pg.41]

See other pages where Humic matter fraction ultrafiltration is mentioned: [Pg.305]    [Pg.121]    [Pg.489]    [Pg.211]    [Pg.3007]    [Pg.299]    [Pg.185]    [Pg.427]    [Pg.483]    [Pg.1159]    [Pg.2111]    [Pg.209]   
See also in sourсe #XX -- [ Pg.498 ]



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Ultrafiltration Fractionation

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