Geochemical modeling of Fe(II) binding to humic and fulvic acids
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چکیده
منابع مشابه
Humic and fulvic acids stimulate the growth of Mycobacterium avium.
Mycobacterium avium, an environmental, opportunistic pathogenic mycobacterium, has been isolated frequently and in high numbers from waters in Finland and from acid, brown water swamps of the southeastern coastal USA. M. avium has also been recovered in high numbers from Finnish drinking water and frequently isolated from Finnish AIDS patients. Boreal forests and brown water swamps are similar ...
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Increased use of humic substances in agriculture has generated intense interest among producers, consumers, and regulators for an accurate and reliable method to quantify humic acid (HA) and fulvic acid (FA) in raw ores and products. Here we present a thoroughly validated method, the new standardized method for determination of HA and FA contents in raw humate ores and in solid and liquid produ...
متن کاملEffects of humic and fulvic acids on poliovirus concentration from water by microporous filtration.
Because naturally occurring organic matter is thought to interfere with virus adsorption to microporous filters, humic and fulvic acids isolated from a highly colored, soft surface water were used as model organics in studies on poliovirus adsorption to and recovery from electropositive Virosorb 1MDS and electronegative Filterite filters. Solutions of activated carbon-treated tap water containi...
متن کامل3D-Fluorescence Spectroscopic Analysis of HPLC Fractionated Estuarine Fulvic and Humic Acids
Seis amostras de ácidos fúlvicos (AF) e húmicos (AH) estuarinos foram fracionadas por meio de cromatografia líquida de alta performance em fase reversa, num gradiente de polaridade água → acetonitrila, com detecção por fluorescência. Diferenças entre os cromatogramas mostraram que os AH contêm mais componentes hidrofóbicos que os AF. Os espectros de fluorescência tridimensional das frações fora...
متن کاملPolyacrylamide Gel Electrophoresis of Humic and Fulvic Acids after Acid Hydrolysis
Two soil humic acids (HA), a marine sediment HA, and a soil fulvic acid (FA), were fractionated by polyacrylamide gel electrophoresis in the presence of denaturing agents before and after 6N HCl hydrolysis. After acid hydrolysis, the intensity of the high molecular size (MS) fraction decreased considerably in all HAs. On the other hand, a new high-MS fraction appeared in the FA after hydrolysis...
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ژورنال
عنوان ژورنال: Chemical Geology
سال: 2014
ISSN: 0009-2541
DOI: 10.1016/j.chemgeo.2014.02.019