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Showing 25 to 36 of 443 entries
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Biofunctional characteristics of lignite fly ash modified by humates: a new soil conditioner.

Bioinorganic chemistry and applications

Chassapis K, Roulia M, Vrettou E, Fili D, Zervaki M.
PMID: 20592758
Bioinorg Chem Appl. 2010;457964. doi: 10.1155/2010/457964. Epub 2010 May 31.

Fly ash superficially modified with humic substances from the Megalopolis lignitic power plant was prepared and evaluated for agricultural uses. UV-vis spectrophotometry and IR spectroscopy revealed that fly ash shows high sorption efficiency towards humic substances. Adsorption proceeds stepwise...

Research Watch: Modeling the behavior of humic substances.

Environmental science & technology

[No authors listed]
PMID: 21648701
Environ Sci Technol. 1996 May 23;30(6):234A. doi: 10.1021/es962243q.

No abstract available.

The potential of downscaled dynamic column extraction for fast and reliable assessment of natural weathering effects of municipal solid waste incineration bottom ashes.

Analytica chimica acta

Rosende M, Miró M, Cerdà V.
PMID: 18558112
Anal Chim Acta. 2008 Jul 07;619(2):192-201. doi: 10.1016/j.aca.2008.04.062. Epub 2008 May 07.

There is a current worldwide interest for evaluating the potential reuse of municipal solid waste incineration (MSWI) bottom ash as a sub-base in road construction and secondary building material. Yet, there is a need for exploration of the physicochemical...

Influence of pH, Oxygen, and Humic Substances on Ability of Sunlight To Damage Fecal Coliforms in Waste Stabilization Pond Water.

Applied and environmental microbiology

Curtis TP, Mara DD, Silva SA.
PMID: 16348698
Appl Environ Microbiol. 1992 Apr;58(4):1335-43. doi: 10.1128/aem.58.4.1335-1343.1992.

Simple beaker experiments established that light damages fecal coliforms in waste stabilization ponds by an oxygen-mediated exogenous photosensitization. Wavelengths of up to 700 nm were able to damage bacteria. The ability of wavelengths of >425 nm to damage fecal...

Enzymatic Combustion of Aromatic and Aliphatic Compounds by Manganese Peroxidase from Nematoloma frowardii.

Applied and environmental microbiology

Hofrichter M, Scheibner K, Schneegass I, Fritsche W.
PMID: 16349496
Appl Environ Microbiol. 1998 Feb;64(2):399-404. doi: 10.1128/AEM.64.2.399-404.1998.

The direct involvement of manganese peroxidase (MnP) in the mineralization of natural and xenobiotic compounds was evaluated. A broad spectrum of aromatic substances were partially mineralized by the MnP system of the white rot fungus Nematoloma frowardii. The cell-free...

[Study on solid surface fluorescence characteristic of saline soils around lakes in arid and semiarid regions].

Guang pu xue yu guang pu fen xi = Guang pu

Yu HB, Xi BD, Wei ZM, Ma WC, He XS, Guo XJ, Liu HL.
PMID: 21137399
Guang Pu Xue Yu Guang Pu Fen Xi. 2010 Oct;30(10):2680-4.

Fluorescence spectroscopy relies on the fluorescence emitted by rigid conjugated systems and thus has been increasingly used to assess the soil organic matter (SOM) humification. This technique is widely applied to solution samples of humic substances, and so far...

Selective, sensitive and economical method for the adsorptive voltammetric determination of trace amounts of Mo(VI) in organic matter rich environmental samples.

Talanta

Grabarczyk M, Koper A.
PMID: 21376963
Talanta. 2011 Apr 15;84(2):393-9. doi: 10.1016/j.talanta.2011.01.057. Epub 2011 Jan 26.

A differential pulse adsorptive stripping voltammetric method has been developed for molybdenum trace determination in environmental water samples containing organic compounds. It was proved that interferences from the organic matrix such as surface active substances and humic substances could...

Solubility enhancement and fluorescence quenching of pyrene by humic substances: the effect of dissolved oxygen on quenching processes.

Environmental science & technology

Danielsen KM, Chin YP, Buterbaugh JS, Gustafson TL, Traina SJ.
PMID: 22191371
Environ Sci Technol. 1995 Aug 01;29(8):2162-5. doi: 10.1021/es00008a042.

No abstract available.

Fragmentation studies of fulvic acids using collision induced dissociation fourier transform ion cyclotron resonance mass spectrometry.

Analytical chemistry

Witt M, Fuchser J, Koch BP.
PMID: 19331432
Anal Chem. 2009 Apr 01;81(7):2688-94. doi: 10.1021/ac802624s.

The complex natural organic matter standard Suwannee river fulvic acid (SRFA) was analyzed by negative ion mode electrospray ionization Fourier transform ion cyclotron resonance mass spectrometry (ESI FTICR MS) using on-resonance collision induced dissociation (CID) of single ultrahigh resolved...

Modeling ion binding to humic substances: elastic polyelectrolyte network model.

Langmuir : the ACS journal of surfaces and colloids

Orsetti S, Andrade EM, Molina FV.
PMID: 20055366
Langmuir. 2010 Mar 02;26(5):3134-44. doi: 10.1021/la903086s.

A new model for the electrostatic contribution to ion binding to humic substances is proposed and applied to published data for proton binding to fulvic and humic acids. The elastic polyelectrolyte network model treats humic substance particles as composed...

Associations of chlorinated hydrocarbons with fine particles and humic substances in nearshore surficial sediments.

Environmental science & technology

Choi WW, Chen KY.
PMID: 22217053
Environ Sci Technol. 1976 Aug 01;10(8):782-6. doi: 10.1021/es60119a004.

No abstract available.

Determination of equilibrium and rate constants for binding of a polychlorinated biphenyl congener by dissolved humic substances.

Environmental science & technology

Hassett JP, Milicic E.
PMID: 22148308
Environ Sci Technol. 1985 Jul;19(7):638-43. doi: 10.1021/es00137a010.

No abstract available.

Showing 25 to 36 of 443 entries