Results 201 to 210 of about 21,286 (231)
Some of the next articles are maybe not open access.

Interactions between montmorillonite and fulvic acid

Geoderma, 1976
Abstract The isotherms at 20°C for the adsorption of 14 C-labelled fulvic acid from aqueous solutions by montmorillonite containing different exchangeable cations, have been determined. Below a concentration of 0.45 mg/ml and at near neutral pH, all samples give linear isotherms, the slope of which increases in the order Ba 2+ 2+ 2+ 3+ 3 ...
openaire   +1 more source

Aliphatic structures in peat fulvic acids

Science of The Total Environment, 1987
Abstract Fulvic acids, extracted from strongly humified milled peat, were studied through 13C-NMR measurements and cupric oxide oxidations. The 13C-NMR spectrum shows signals caused by the carboxylic carbons, aromatic or olefinic carbons, acetal carbons, aliphatic alcohol carbons and methylene and methyl carbons.
openaire   +1 more source

Physico-Chemical Properties of Fulvic Acids

2003
By means of extraction and ion exchange rulvic acids with variable vestigial content of metals were separated from bottom sediments. These acids were subject to a physico-chemical analysis, which evaluated their electrokinetic potential, the size of molecules, absorbance, electrical conductivity of the solution as well as the relation of these factors ...
Anna M. Anielak, Artur Majewski
openaire   +1 more source

Integrative oncology: Addressing the global challenges of cancer prevention and treatment

Ca-A Cancer Journal for Clinicians, 2022
Jun J Mao,, Msce   +2 more
exaly  

Determination of fulvic acids in water

Journal of Applied Chemistry, 1959
AbstractA method for the determination of fulvic acids present in naturally‐occurring waters has been developed, based on the measurement of the ultra‐violet absorption spectrum of the sample. The method has been applied to samples of water from different parts of the country, and the results indicate that for moorland waters the fulvic acids are very ...
openaire   +1 more source

Obesity and adverse breast cancer risk and outcome: Mechanistic insights and strategies for intervention

Ca-A Cancer Journal for Clinicians, 2017
Cynthia Morata-Tarifa   +1 more
exaly  

Multidisciplinary standards of care and recent progress in pancreatic ductal adenocarcinoma

Ca-A Cancer Journal for Clinicians, 2020
Aaron J Grossberg   +2 more
exaly  

Home - About - Disclaimer - Privacy