Results 111 to 120 of about 11,613 (265)

Aumento del contenido de ácidos húmicos en un carbón de bajo rango a través de la oxidación con aire y con peróxido de hidrogeno o ácido nítrico Increase of the content of humic acids in a low rank coal by oxidation with air and with hydrogen peroxide or nitric acid

Química Nova, 2013
Low-rank coals are an important source of humic acids, which are important in retention processes of water and nutrients in plants. In this study coal samples of Montelibano, Colombia, were oxidized with air at different temperatures and subsequently ...
Ruben Anillo-Correa, Fredy Colpas-Castillo, Edgardo Meza-Fuentes   +2 more
doaj  

The Effects of Humic Acids on the Early Developmental Stages of African Cichlids during Artificial Breeding. [PDF]

Life (Basel), 2023
Ondrašovičová S, Zigo F, Gogoľa J, Lacková Z, Farkašová Z, Arvaiová J, Almášiová V, Rehan IF.   +7 more
europepmc   +1 more source

Quantifying Effects of OM–Cation Interactions on Mid‐Infrared FTIR Absorption Spectra of Polygalacturonic Acid

Journal of Plant Nutrition and Soil Science, EarlyView.
The composition of organic matter (OM) was explained by effects of OM–cation interactions using polygalacturonic acid (PGA) as model substance. These effects were analyzed by COO− absorption bands in mid‐FTIR spectra. The change in intensity and wavenumber ranges of COO− bands in FTIR was quantified.
Ruth H. Ellerbrock, Nisha Bhattarai, Horst H. Gerke   +2 more
wiley   +1 more source

Extraction of Humic Acids from Lignite and Its Use as a Biochar Activator. [PDF]

ACS Omega, 2023
Li H, Ding S, Yuan J.
europepmc   +1 more source

Decoupling climate and human impacts on the nitrogen cycle during the Irish Bronze Age

Journal of Quaternary Science, EarlyView.
ABSTRACT Disentangling climate variability and human activity in past nitrogen cycling is key to understanding ecosystems. Previous studies in Ireland observed a widespread, permanent shift in terrestrial nitrogen cycling during Later Prehistory, potentially linked to intensifying land‐use.
Sarah Ferrandin, Gill Plunkett, Neil Ogle   +2 more
wiley   +1 more source

Humic Acids Inhibit Platelet Activation to Reduce Venous Thromboembolism in Mice. [PDF]

Evid Based Complement Alternat Med, 2022
Lan HT, Zheng YT, Tong ZJ, Zhang C, Cong XY, Wang ZH.   +5 more
europepmc   +1 more source

Mycotoxin management in the cereal supply chain: Advanced detection, detoxification, and smart packaging strategies

Journal of the Science of Food and Agriculture, EarlyView.
Abstract Mycotoxins remain a persistent threat to the safety and quality of cereal grains and other agricultural products, and their impact on human health continues to raise global concerns. In many situations, the practices traditionally used to control these toxins are no longer sufficiently effective. They can be costly, difficult to implement on a
Abolfazl Asqardokht‐Aliabadi, Dipendra Kumar Mahato, Jafar Mohammadzadeh Milani   +2 more
wiley   +1 more source

Influence of Zinc and Humic Acids on Dye Adsorption from Water by Two Composts. [PDF]

Int J Environ Res Public Health, 2023
Paradelo R, García P, González A, Al-Zawahreh K, Barral MT.   +4 more
europepmc   +1 more source

The incorporation of glycylglycine into humic acid [PDF]

Biochemical Journal, 1971
D R, Perry, W A, Adams
openaire   +2 more sources

How the Physical and Chemical Properties Affect the Heavy Metal Content in Surface Water in Different Types of Peatlands

Land Degradation &Development, EarlyView.
ABSTRACT Only ~3% of the global land surface is covered by peatlands, yet more than one‐third of global soil carbon is stored in these ecosystems and contaminant filtration can be provided. The extent to which peat humification (Fibric–Hemic–Sapric) is linked to dissolved heavy metals in peatland surface waters has remained poorly quantified at a ...
Stanisław Łyszczarz, Norbert Szymański, Michał Jasik, Wojciech Piaszczyk, Andrzej Szlachta, Mirosław Żelazny, Ewa Błońska, Jarosław Lasota, Stanisław Małek   +8 more
wiley   +1 more source