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Organic Matter Lability In A Tropical Oxisol: Evidence From Shifting Cultivation, Chemical Oxidation, Particle Size, Density, And Magnetic Fractionations
When temperate soils are cultivated, rates of organic matter mineralization rarely exceed 50% of total carbon (C) for about 50 to 100 years of cultivation, and the remaining soil organic matter… Expand
A modified colorimetric method for phytic acid analysis in soybean
A quantitative, reproducible, and efficient phytic acid assay procedure is needed to screen breeding populations and support genetic studies in soybeans [Glycine max (L.) Merr.]. The objective of… Expand
Selective adsorption of uranium(VI) from aqueous solutions using the ion-imprinted magnetic chitosan resins.
- L. Zhou, C. Shang, Z. Liu, Guolin Huang, A. Adesina
- Chemistry, Medicine
- Journal of colloid and interface science
- 15 January 2012
The ion-imprinted magnetic chitosan resins (IMCR) prepared using U(VI) as a template and glutaraldehyde as a cross-linker showed higher adsorption capacity and selectivity for the U(VI) ions compared… Expand
Adsorption of acid dyes from aqueous solutions by the ethylenediamine-modified magnetic chitosan nanoparticles.
- L. Zhou, Jieyun Jin, Z. Liu, X. Liang, C. Shang
- Chemistry, Medicine
- Journal of hazardous materials
- 30 January 2011
The adsorption characteristics of Acid Orange 7(AO7) and Acid Orange 10 (AO10) from aqueous solutions onto the ethylenediamine-modified magnetic chitosan nanoparticles (EMCN) have been investigated.… Expand
Sequential versus parallel density fractionation of silt-sized organomineral complexes of tropical soils using metatungstate
Abstract A comparison of two density fractionation methods used for studying soil organomineral complexes was carried out on the silt-size fractions of two highly weathered soils from NE Brazil. The… Expand
Measurement of phytase activity using tethered phytic acid as an artificial substrate : Methods development
The artificial chromophoric substrate analog of phytic acid, 5-O-[6-(benzoylamino)hexyl]-d-myo-inositol-1,2,3,4,6-pentakisphosphate (T-IP5), may prove useful in measuring soil phytase activity. This… Expand
Investigation of humate-cetyltrimethylammonium complexes by small-angle X-ray scattering.
The structural examination of the complexes formed between humic acid and cationic surfactants has environmental implications. A humic acid (HA) dissolved in 0.1 M NaOH (5 g/L) was reacted with a… Expand
Adsorption of heterocyclic sulfur and nitrogen compounds in liquid hydrocarbons on activated carbons modified by oxidation: capacity, selectivity and mechanism
In order to understand the adsorption mechanism for removing heterocyclic sulfur/nitrogen compounds from liquid hydrocarbons on activated carbon, the liquid-phase adsorption of quinoline, indole,… Expand
Measurement of phytase activity in soil using a chromophoric tethered phytic acid probe.
Abstract The lack of a reliable method for measuring phytase activity (PA) in soil impedes efforts to elucidate the influence of these phosphomonoesterases on phytate degradation and subsequently the… Expand
Interpretation of small-angle x-ray scattering data from dilute montmorillonite suspensions using a modified Guinier approximation.
- C. Shang, J. Rice
- Materials Science, Medicine
- Physical review. E, Statistical, nonlinear, and…
- 18 July 2001
Smectites are a group of 2:1-layer phyllosilicate minerals that have been extensively studied by small-angle x-ray scattering (SAXS) because of their industrial and environmental significance. In… Expand