Results 151 to 160 of about 3,644 (182)

Binding of Methylmercury Compounds by Humic and Fulvic Acids

Water, Air, & Soil Pollution, 1995
Humic and fulvic acids were isolated from Fawn Lake in Ontario and investigated by membrane dialysis for their ability to bind CH3Hg+. By measuring the distribution of methylmercury compounds in and outside of the dialysis membrane, for the first time, binding capacities and conditional stability constants for CH3Hg+ and humic acids could be calculated.
H. Hintelmann, P. M. Welbourn, R. D. Evans   +2 more
openaire   +1 more source

Multiphase Chemistry of Ozone on Fulvic Acids Solutions

Environmental Science & Technology, 2008
By means of a wetted-wall flow tube, we studied the multiphase chemistry of ozone on aqueous solutions containing fulvic acids (FA), taken as proxies for atmospheric "humic like substances", so-called HULIS. In these experiments, the loss of gaseous O3 was monitored by UV-visible absorption spectroscopy at the reactor outlet (i.e., after contact ...
Brigante, M., d'Anna, B., Conchon, P., George, C.   +3 more
openaire   +2 more sources

Effect of fulvic acid on the photochemical degradation of methylparathion

Journal of Environmental Science and Health, Part B, 2010
Photochemical degradation of methylparathion (O,O,-dimethyl O-4 nitrophenylphosphorothioate) in the presence of fulvic acid (FA) between pH 2 and 7 was studied by differential pulse polarography (DPP). Fulvic acid and its photoproducts were not electro-active under the experimental conditions used in this study, and only the pesticide exhibited ...
José A, Manzanilla-Cano, Manuel H, Barceló-Quintal, Ligia Del C, Alcocer-Can, Tania I, Coral-Martínez   +3 more
openaire   +2 more sources

Sequestration of biogenic amines by alginic and fulvic acids

Biophysical Chemistry, 2006
The interaction of natural (alginic and fulvic acids) and synthetic (polyacrylic acid 2.0 kDa) polyelectrolytes with some protonated polyamines [diamines: ethylendiamine, 1,4-diaminobutane (or putrescine), 1,5-diaminopentane (or cadaverine); triamines: N-(3-aminopropyl)-1,4-diaminobutane (or spermidine), diethylenetriamine; tetramine: N,N'-bis(3 ...
DE STEFANO, Concetta, GIANGUZZA A, PIAZZESE D, PORCINO, NUNZIATINA, SAMMARTANO, Silvio   +4 more
openaire   +4 more sources

Europium binding by an aquatic fulvic acid. Interaction functions for the “average” sites in the fulvic acid molecule

Science of The Total Environment, 1991
Abstract The interaction of a well characterized aquatic fulvic acid, Bersbo FA, with Eu 3+ has been studied using ion-exchange distribution studies and an ultrafiltration method. The results indicate that values of overall stability constants, Q MFA , obtained in the ion-exchange distribution studies (log Q MFA = 6.00–8.55), which increased ...
openaire   +1 more source

CHARACTERISTICS OF WATER-SOLUBLE FULVIC ACID-COPPER AND FULVIC ACID-IRON COMPLEXES

Soil Science, 1982
M. SCHNITZER, KUNAL GHOSH
openaire   +1 more source

Composition of Humic and Fulvic Acids from Lignite

Coke and Chemistry, 2022
K M Shpakodraev, N V Malyshenko, Ismagilov Z R   +2 more
exaly  

Sewage sludge and solid residues from biogas production derived biochar as an effective bio-waste adsorbent of fulvic acids from water or wastewater

Chemosphere, 2021
Magdalena Konczak, Patryk Oleszczuk, Bozena Czech   +2 more
exaly  

Humic and Fulvic Acids as Specific Sorbents of Herbicides in Water

Clean - Soil, Air, Water, 2021
Stavros Lalas, Vassilis Athanasiadis, Vassilis Dourtoglou   +2 more
exaly  

Isolation and purification of hydrophilic fulvic acids by precipitation

Geoderma, 2006
Syuntaro Hiradate
exaly