Rapid delineation of humic and non-humic organic matter fractions in water

Dissolved organic matter (DOM) in water is often characterized by aggregate parameters like dissolved organic carbon (DOC). DOM from conventional surface water treatment plant in Northern New Jersey was isolated and fractionated using resin adsorption chromatography into six different fractions, whi...

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Bibliographic Details
Published in:Journal of hazardous materials 2000-04, Vol.73 (3), p.221-234
Main Authors: Marhaba, Taha F, Pu, Yong
Format: Article
Language:English
Subjects:
Adsorption
Amino Acids - analysis
Amino Sugars - analysis
Applied sciences
Benzopyrans - analysis
Carbon - analysis
Chromatography
Dissolved organic matter (DOM)
Drinking water and swimming-pool water. Desalination
Exact sciences and technology
Fluorescence
Fractionation
Humans
Hydrocarbons - analysis
Hydroxy Acids - analysis
Linear Models
New Jersey
Organic Chemicals - analysis
Pollution
Polysaccharides - analysis
Proteins - analysis
Rapid delineation
Resins, Plant
Sensitivity and Specificity
Solubility
Spectrophotometry
Water Pollutants, Chemical - analysis
Water Purification
Water treatment and pollution
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Summary:Dissolved organic matter (DOM) in water is often characterized by aggregate parameters like dissolved organic carbon (DOC). DOM from conventional surface water treatment plant in Northern New Jersey was isolated and fractionated using resin adsorption chromatography into six different fractions, which were operationally categorized as hydrophobic acid, hydrophobic neutral, hydrophobic base, hydrophilic acid, hydrophilic neutral and hydrophilic base. The spectral fluorescent signatures (SFS) technique was developed for the quantitative identification of the six fractions by post-processing analysis that includes a statistical model. The SFS is the total sum of emission spectra of a sample at different excitation wavelengths, recorded as a matrix of fluorescent intensity in coordinates of excitation and emission wavelengths, in a definite spectral window. High sensitivity and rapid identification and quantification of DOM fractions are among the main features of the technique. Since hydrophobic and hydrophilic substances are considered more humic and non-humid in nature, respectively, the technique provided an opportunity to rapidly delineate source waters in terms of such categories.
ISSN:0304-3894
1873-3336
DOI:10.1016/S0304-3894(99)00188-0