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Comparing Gel Permeation Chromatography and Ultrafiltration for the Molecular Weight Characterization of Aquatic Organic Matter
Author(s) -
Amy Gary L.,
Collins Michael R.,
Kuo C. James,
King Paul H.
Publication year - 1987
Publication title -
journal ‐ american water works association
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.466
H-Index - 74
eISSN - 1551-8833
pISSN - 0003-150X
DOI - 10.1002/j.1551-8833.1987.tb02782.x
Subject(s) - ultrafiltration (renal) , gel permeation chromatography , dissolved organic carbon , chemistry , organic matter , permeation , chromatography , humic acid , environmental chemistry , natural organic matter , molar mass distribution , characterization (materials science) , membrane , organic chemistry , materials science , polymer , nanotechnology , fertilizer , biochemistry
Gel permeation chromatography (GPC) and ultrafiltration (UF), both relatively inexpensive analytical techniques requiring moderate levels of analyst expertise, are potential tools for monitoring the presence of aquatic organic matter and humic substances in raw water sources as well as the removal of organic constituents during water treatment. The two methods provided somewhat different trends in the relative molecular weight distribution of dissolved organic matter in various water sources. The GPC method generally indicated a higher molecular weight than the UF method for a given source. Moreover, the GPC method was found to be more significantly affected by pH conditions.

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