Characterization of the Partitioning of Gaseous Solutes Into Humic Acid with the Abraham Model and Temperature-Independent Equation Coefficients

2008 ◽  
Vol 27 (4) ◽  
pp. 483-491 ◽  
Author(s):  
Christina Mintz ◽  
Tara Ladlie ◽  
Katherine Burton ◽  
Michael Clark ◽  
William E. Acree ◽  
...  
Keyword(s):  
Humic Acid ◽  
Independent Equation ◽  
Abraham Model

Characterization of dissolved organic matter (DOM) extracted from soils by hot water percolation (HWP)

2010 ◽  
Vol 59 (1) ◽  
pp. 99-108 ◽  
Author(s):  
M. Takács ◽  
Gy. Füleky
Keyword(s):  
Organic Matter ◽  
Humic Acid ◽  
Natural Organic Matter ◽  
Extraction Methods ◽  
Soil Samples ◽  
Hot Water ◽  
Soil Extracts ◽  
Water Percolation ◽  
Soil Humic Acid

The Hot Water Percolation (HWP) technique for preparing soil extracts has several advantages: it is easily carried out, fast, and several parameters can be measured from the same solution. The object of this study was to examine the possible use of HWP extracts for the characterization of soil organic matter. The HPLC-SEC chromatograms, UV-VIS and fluorescence properties of the HWP extracts were studied and the results were compared with those of the International Humic Substances Society (IHSS) Soil Humic Acid (HA), IHSS Soil Fulvic Acid (FA) and IHSS Suwannee Natural Organic Matter (NOM) standards as well as their HA counterparts isolated by traditional extraction methods from the original soil samples. The DOM of the HWP solution is probably a mixture of organic materials, which have some characteristics similar to the Soil FA fractions and NOM. The HWP extracted organic material can be studied and characterized using simple techniques, like UV-VIS and fluorescence spectroscopy.

Tanning process promotes abiotic humification: separation and characterization of humic acid-like polymers complex

2020 ◽  
Vol 27 (33) ◽  
pp. 41437-41445
Author(s):  
Chao Zhu ◽  
Huiqin Wang ◽  
Hongrui Ma ◽  
Yonglin Yang ◽  
Fan Li
Keyword(s):  
Humic Acid ◽  
Tanning Process

Synthesis and chromatographic characterization of [Tc-99m]technetium-humic acid species

2000 ◽  
Vol 88 (2) ◽  
Author(s):  
D. Rößler ◽  
K. Franke ◽  
R. Süß ◽  
E. Becker ◽  
H. Kupsch
Keyword(s):  
Humic Acid ◽  
Stannous Chloride ◽  
Gel Permeation Chromatography ◽  
Paper Electrophoresis ◽  
Gel Permeation ◽  
Soil Humic Acid ◽  
Chromatographic Characterization ◽  
Ph Dependent ◽  
Layer Chromatography

A natural moor soil humic acid (HA) was labeled with Tc-99m via reduction of pertechnetate with stannous chloride. The humic acid species obtained were characterized by thin layer chromatography (TLC), gel permeation chromatography (GPC), sequential chromatographic analysis (SCA), paper electrophoresis and micropore filtration. Labeling was found to take place in all ranges of molecular weight. Due to the complex humic acid composition and the formation of hydroxo species the labeling yields strongly depend on the separation conditions, ranging from 42% to 80%. The pH-dependent distribution of mobile and immobile species was determined by SCA for HTcO

scholarly journals Molecular characterization of an end-residue of humeomics applied to a soil humic acid

RSC Advances ◽  
2014 ◽  
Vol 4 (45) ◽  
pp. 23658-23665 ◽  
Author(s):  
A. Nebbioso ◽  
A. Piccolo ◽  
M. Lamshöft ◽  
M. Spiteller
Keyword(s):  
Organic Matter ◽  
Humic Acid ◽  
Molecular Characterization ◽  
Natural Organic Matter ◽  
Molecular Composition ◽  
Chemical Fractionation ◽  
Soil Humic Acid

Humeomics encompasses step-wise chemical fractionation and instrumental determination to fully characterize the heterogeneous molecular composition of natural organic matter.

Humic acid removal by electrocoagulation: characterization of aluminum species and humic acid

2015 ◽  
Vol 57 (24) ◽  
pp. 10969-10979 ◽  
Author(s):  
Ronna Jane S. Palacios ◽  
Do-Gun Kim ◽  
Seok-Oh Ko
Keyword(s):  
Humic Acid

Preparation and characterization of yeast cell wall beta-glucan encapsulated humic acid nanoparticles as an enhanced aflatoxin B1 binder

2019 ◽  
Vol 203 ◽  
pp. 185-192 ◽  
Author(s):  
Zeinab Hamza ◽  
Maher El-Hashash ◽  
Soher Aly ◽  
Amal Hathout ◽  
Ernesto Soto ◽  
...  
Keyword(s):  
Cell Wall ◽  
Humic Acid ◽  
Yeast Cell ◽  
Aflatoxin B1 ◽  
Yeast Cell Wall ◽  
Beta Glucan

Spectroscopic characterization of humic acid fractions isolated from soil using different extraction procedures

Geoderma ◽  
2006 ◽  
Vol 133 (3-4) ◽  
pp. 204-216 ◽  
Author(s):  
Ludmila Timofeevna Shirshova ◽  
Elham A. Ghabbour ◽  
Geoffrey Davies
Keyword(s):  
Humic Acid ◽  
Spectroscopic Characterization ◽  
Extraction Procedures

Characterization of Humic Acid Modified Bentonite Binder for Iron Ore Pelletization

2016 ◽  
pp. 201-208
Author(s):  
Yang Sun ◽  
Bin Xu ◽  
Yuanbo Zhang ◽  
Bingbing Liu ◽  
Youlian Zhou ◽  
...  
Keyword(s):  
Humic Acid ◽  
Iron Ore ◽  
Modified Bentonite ◽  
Bentonite Binder
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