Results 111 to 120 of about 944,278 (220)

Square-wave voltammetry of molybdenum-fulvic acid complex

open access: yes, 2001
cited By 34International audienceThe reduction process of molybdenum in the presence of fulvic acids was investigated by square-wave voltammetry (SWV). The influence of the parameters (frequency, amplitude) of the SW on the reduction signal is analyzed ...
Quentel, François, Elleouet, Catherine
core   +1 more source

Fulvic acids as transition state of organic matter: Indications from high resolution mass spectrometry

open access: yes, 2006
Fulvic acids are one of the largest classes of dissolved organic matter, but they are poorly defined and of unclear origin. Three fulvic acid isolates of different origin were analyzed by size-exclusion chromatography coupled to electrospray ionization ...
Linscheid, M.   +3 more
core   +1 more source

Spectral Characteristics Related to Chemical Substructures and Structures Indicative of Organic Precursors from Fulvic Acids in Sediments by NMR and HPLC-ESI-MS. [PDF]

open access: yesMolecules, 2021
López-Martínez VG   +6 more
europepmc   +1 more source

Copper uptake by the marine mussel, Mytilus edulis in the presence of fulvic acids

open access: yes, 2012
Copper uptake and accumulation by the marine mussel Mytilus edulis were studied at different Cu concentrations in chemically defined artificial seawater in the presence and absence of fulvic acids. Both short-term uptake of Cu by excised mussel gills and
Beiras, R.   +4 more
core  

Influence of Humic and Fulvic acids on the Availpbility and Inorganic Transformation of Phosphorus in soil

open access: yes, 1974
Faculty of Agriculture. University of Kalyani, Nadia, West Bengal. Manuscript received 6 February 1974 ; accepted 1 July 1974. The effects of humic and fulvic acids on the availability of phosphates and inorganic transfor­mation of added water soluble ...
N. C. DEBNATH   +2 more
core   +1 more source

Mechanisms of Adsorption of Phenoxyalkanoic Herbicides on Fulvic and Humic Acids [PDF]

open access: yes
Our recent study demonstrated that fulvic and humic acids are the major contributors to the adsorption of phenoxyalkanoic acid herbicides in soils.
SKIC, K.   +9 more
core   +1 more source

In Situ Examination of the Protonation Behavior of Fulvic Acids Using Differential Absorbance Spectroscopy

open access: yes, 2008
The effects of pH changes on the absorbance spectra of fulvic acids, which constitute a major part of natural organic matter (NOM) were examined based primarily on the example of standard Suwannee River fulvic acid (SRFA). Differential absorbance spectra
KORSHIN G. V.   +2 more
core  

Humic and fulvic acids in sediments of the Hooghly estuary and some coastal areas in the northern Bay of Bengal [PDF]

open access: yes, 1989
16-20Humic substances separated from the sediments of the Hooghly estuary and some coastal stations, were studied. The major fraction of humic acids was extracted by 0.05 M alkali solution whereas the major fraction of fulvic acids required 0.5 M alkali ...
Sardessai, S
core  

Spectroscopic characterization of humic and fulvic acids in soil aggregates, Brazil. [PDF]

open access: yesHeliyon, 2020
Machado W   +3 more
europepmc   +1 more source

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