Characterization of natural organic matter from eight Norwegian surface waters: Proton and copper binding

This study examined the effects of changes in pH and copper concentration on the absorbance spectra of natural organic matter (NOM) from a reservoir in Western Australia. Differential absorbance spectra generated for this NOM under changing pH and copper concentration conditions revealed features that could be correlated to the activity of distinct types of chromophores. A comparison of results with those generated for experiments with standard Suwannee River fulvic acid highlighted important differences in chemistry between the two samples.

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Characterization of the Molecular Weight and Reactivity of Natural Organic Matter in Surface Waters

ACS Symposium Series - Advances in the Physicochemical Characterization of Dissolved Organic Matter: Impact on Natural and Engineered Systems ◽

10.1021/bk-2014-1160.ch011 ◽

2014 ◽

pp. 209-233 ◽

Cited By ~ 2

Author(s):

Ina Kristiana ◽

Jace Tan ◽

Suzanne McDonald ◽

Cynthia A. Joll ◽

Anna Heitz

Keyword(s):

Molecular Weight ◽

Organic Matter ◽

Natural Organic Matter ◽

Surface Waters

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Characterization of dissolved organic matter (DOM) extracted from soils by hot water percolation (HWP)

Agrokémia és Talajtan ◽

10.1556/agrokem.59.2010.1.12 ◽

2010 ◽

Vol 59 (1) ◽

pp. 99-108 ◽

Cited By ~ 3

Author(s):

M. Takács ◽

Gy. Füleky

Keyword(s):

Organic Matter ◽

Humic Acid ◽

Natural Organic Matter ◽

Extraction Methods ◽

Soil Samples ◽

Hot Water ◽

Soil Extracts ◽

Water Percolation ◽

Soil Humic Acid

The Hot Water Percolation (HWP) technique for preparing soil extracts has several advantages: it is easily carried out, fast, and several parameters can be measured from the same solution. The object of this study was to examine the possible use of HWP extracts for the characterization of soil organic matter. The HPLC-SEC chromatograms, UV-VIS and fluorescence properties of the HWP extracts were studied and the results were compared with those of the International Humic Substances Society (IHSS) Soil Humic Acid (HA), IHSS Soil Fulvic Acid (FA) and IHSS Suwannee Natural Organic Matter (NOM) standards as well as their HA counterparts isolated by traditional extraction methods from the original soil samples. The DOM of the HWP solution is probably a mixture of organic materials, which have some characteristics similar to the Soil FA fractions and NOM. The HWP extracted organic material can be studied and characterized using simple techniques, like UV-VIS and fluorescence spectroscopy.

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Characterization of natural organic matter (NOM) derived from sewage sludge compost. Part 2: multivariate techniques in the study of compost maturation

Bioresource Technology ◽

10.1016/j.biortech.2004.05.019 ◽

2005 ◽

Vol 96 (4) ◽

pp. 479-484 ◽

Cited By ~ 49

Author(s):

Radosław Zbytniewski ◽

Boguslaw Buszewski

Keyword(s):

Organic Matter ◽

Sewage Sludge ◽

Natural Organic Matter ◽

Multivariate Techniques ◽

Sludge Compost ◽

Sewage Sludge Compost

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Molecular characterization of an end-residue of humeomics applied to a soil humic acid

RSC Advances ◽

10.1039/c4ra01619j ◽

2014 ◽

Vol 4 (45) ◽

pp. 23658-23665 ◽

Cited By ~ 18

Author(s):

A. Nebbioso ◽

A. Piccolo ◽

M. Lamshöft ◽

M. Spiteller

Keyword(s):

Organic Matter ◽

Humic Acid ◽

Molecular Characterization ◽

Natural Organic Matter ◽

Molecular Composition ◽

Chemical Fractionation ◽

Soil Humic Acid

Humeomics encompasses step-wise chemical fractionation and instrumental determination to fully characterize the heterogeneous molecular composition of natural organic matter.

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