Results 41 to 50 of about 5,143,384 (251)

Chemical characterization of water-soluble organic carbon aerosols at a rural site in the Pearl River Delta, China, in the summer of 2006 [PDF]

open access: yes, 2009
Online measurements of water-soluble organic carbon (WSOC) aerosols were made using a particle-into-liquid sampler (PILS) combined with a total organic carbon (TOC) analyzer at a rural site in the Pearl River Delta region, China, in July 2006.
Blake, DR   +12 more
core   +1 more source

Evaluation of organic matter stability during the composting process of agroindustrial wastes. [PDF]

open access: yes, 2002
Composting of wastes from citrus industrial processing (pastazzo and sludge) was studied in order to evaluate the evolution of organic matter during the process and to individuate chemical and/or biochemical techniques able to set the stability of the ...
Benedetti, Anna   +3 more
core   +1 more source

Extraction of humic acid by coacervate: Investigation of direct and back processes [PDF]

open access: yes, 2012
The two aqueous phases extraction process is widely used in environmental clean up of industrial effluents and fine chemical products for their reuse.
Derriche, Zoubir   +4 more
core   +3 more sources

The role of exogenous humic and fulvic acids in iodine biofortification in spinach (Spinacia oleracea L.)

open access: yesPlant and Soil, 2016
Background and aimsThe strong sorption of iodine in soils is a major factor that limits its uptake by plants. The aim of this study was to evaluate the influence of Humistar (a concentrate of exogenous humic acids 12 % w/w and fulvic acids 3 % w/w ...
S. Smoleń   +2 more
semanticscholar   +1 more source

Seasonal Changes in the Character and Nitrogen Content of Dissolved Organic Matter in an Alpine/Subalpine Headwater Catchment

open access: yesThe Scientific World Journal, 2001
We are studying the chemical quality of dissolved organic nitrogen (DON) in a high-elevation watershed in the Colorado Front Range. Samples were collected over the 2000 snowmelt runoff season at two sites across an alpine/subalpine ecotone to understand ...
Eran W. Hood, Mark W. Williams
doaj   +1 more source

Chemical and spectroscopic analysis of olive mill waste water during a biological treatment [PDF]

open access: yes, 2007
The treatment of olive mill waste water was studied on the laboratory scale. Physico–chemical analyses showed the final products had a mean pH of 5.4 without neutralisation and 5.7 when lime was added to the process.
Bailly, Jean-René   +5 more
core   +5 more sources

SYNTHETIC FULVIC ACIDS FROM TANNIN

open access: yesVìsnik Dnìpropetrovsʹkogo unìversitetu. Serìâ Hìmìâ, 2021
Исследование представляет новый, простой и эффективный метод получения синтетических фульвокислот из танина. Синтез основан на реакции окисления танина чистым кислородом в сильно щелочной среде. Комплексное исследование физико-химических и спектроскопических свойств полученного продукта с использованием методов элементного анализа, спектроскопии в УФ ...
Litvin, Valentina A., Abi Njoh, Roger
openaire   +1 more source

A Comprehensive Toxicological Assessment of Fulvic Acid

open access: yesEvidence-Based Complementary and Alternative Medicine, 2020
Fulvic acid (FA), a humic substance, has several nutraceutical properties, including anti‐inflammation, antimicrobial, and immune regulation abilities. However, systematic safety assessment remains insufficient. In the present study, a battery of toxicological studies was conducted per internationally accepted standards to investigate the genotoxicity ...
Chongshan Dai   +4 more
openaire   +2 more sources

Therapeutic Efficiency of Humic Acids in Intoxications

open access: yesLife, 2023
Humins, humic and fulvic acids represent molecules with complex structures. These compounds comprising humic substances (HS) exist naturally in soil, brown coal, peat, and water.
J. Vašková   +4 more
semanticscholar   +1 more source

BORON CONCENTRATION IN HUMIC AND FULVIC ACID EXTRACTS OF SOIL EPIPEDON IN SAN VITALE PINEWOOD (RAVENNA, ITALY)

open access: yesEQA, 2010
Humified Soil Organic Matter (SOM) plays a crucial role in the assessment of soil quality since it makes up a significant part of the total organic carbon and nitrogen in soils.
Maddalena Pennisi   +3 more
doaj   +1 more source

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