Results 21 to 30 of about 64,085 (311)
Origin and nature of humic substances in the waters of the Amazon River Basin [PDF]
Acta Amazonica, 1980 Humic substances dissolved in "black water, white water, and clear water" rivers of the Amazon River basin were compared were humic substances found in podzolic (spodic) and latosolic (oxic) soils of the Amaon region.
Jerry A. Leenheer
doaj +1 more source
Competition from Cu(II), Zn(II) and Cd(II) in Pb(II) binding to Suwannee River Fulvic Acid [PDF]
, 2008 This is a study of trace metal competition in the complexation of Pb(II) by well-characterized humic substances, namely Suwannee River Fulvic Acid (SRFA) in model solutions.
Chakrabarti, C.L., Chakraborty, P.
core +2 more sources
Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2011 The aim of this study was to compare the molecular characteristics of extractable soil carbon from biotopes of the Rašeliník watershed and dissolved organic carbon (DOC) from Rašeliník creek, by using the 0.1M pyrophosphate, 0.01M CaCl2 and Britton ...
Martina Šestauberová +1 more
doaj +1 more source
Бюллетень сибирской медицины, 2023 Aim. To assess the effect of iron-rich humic substances on hematological parameters in acute post-hemorrhagic and iron deficiency anemia.Materials and methods.
K. A. Bratishko +11 more
doaj +1 more source
Humic substances trigger plant immune responses
Chemical and Biological Technologies in Agriculture, 2023 Background Huanglongbing (HLB) is a devastating citrus disease. Before callose deposition, the bacterial infection causes oxidative stress, starting cell damage. Humic substances are among the most efficient antioxidants found in nature.
Rakiely Martins da Silva +4 more
doaj +1 more source
Chirality and the origin of atmospheric humic-like substances [PDF]
, 2010 Aerosol water extracts and atmospheric humic-like substances (HULIS) obtained from PM2.5-fraction aerosol samples collected in a rural/continental background environment and in an urban environment in spring and summer, and at a tropical site that was ...
Maenhaut, Willy +4 more
core +3 more sources
Extraction of humic acid by coacervate: Investigation of direct and back processes [PDF]
, 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
Chemical and spectroscopic analysis of olive mill waste water during a biological treatment [PDF]
, 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
Humic acid protein complexation [PDF]
, 2008 Interactions of purified Aldrich humic acid (PAHA) with lysozyme (LSZ) are investigated. In solution LSZ is moderately positively and PAHA negatively charged at the investigated pH values.
Koopal, L.K. +4 more
core +2 more sources
Haplic Chernozem Properties as Affected by Different Tillage Systems
Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2016 During 2007–2011 we assessed content and quality of humic substances with relationship to soil structure. Object of study was Haplic Chernozem (Hrušovany nad Jevišovkou, Czech Republic) under three different tillage systems: – conventional ploughing to a
Magdalena Hábová +4 more
doaj +1 more source