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Tellurium isotope compositions in acid leach fractions of carbonaceous chondrites
tellurium isotopes acid leaching N-TIMS carbonaceous chondrites isotope anomaly
2017/4/10
We present the tellurium (Te) isotope compositions of the acid leachates and residues from three carbonaceous chondrites,
namely, Allende, Murchison, and Tagish Lake. Most of the Te isotope compositi...
Evaluation of a rapid, effective sample digestion method for trace element analysis of granitoid samples containing acid-resistant minerals: Alkali fusion after acid digestion
silicate digestion method trace element abundance silicate reference material alkali fusion
2017/4/10
Alkali fusion after acid digestion method (AFAD) was used for determination by ICP-MS of twenty-five trace elements
(Rb, Sr, Y, Zr, Nb, Cs, Ba, Hf, Pb, Th, U, and rare earth elements) in four silicat...
Chemical characteristics and δ34S–SO4 2– of acid rain: Anthropogenic sulfate deposition and its impacts on CO2 consumption in the rural karst area of southwest China
karst rainwater chemical composition carbonate weathering southwest China
2017/4/11
We analyzed rainwater collected from Huanjiang, China, between June, 2007 and May, 2008, with the aim of understanding
the origin of the acid rain and its potential impacts on CO2 uptake by carbonate...
Occurrence, genesis and environmental significance of schwertmannite in re-flooded Acid Sulfate Soils in the Lower Murray Reclaimed Irrigation Area
genesis environmental significance schwertmannite re-flooded Acid Sulfate Soils the Lower Murray Reclaimed Irrigation Area
2012/3/30
The Lower Murray Reclaimed Irrigation Area (LMRIA) comprises approximately 5,000ha of flood-irrigated agricultural land located on the floodplain of the River Murray between Mannum and Lake Alexandrin...
Will sea-level rise solve our coastal acid sulfate soil issues?
sea-level rise solve coastal acid sulfate soil issues
2012/3/30
Sea level has risen approximately 1.2 mm/year over the last 100 years (Hennessy et al., 2004) and is predicted to rise up to 80 cm by 2100 relative to 1990 sea levels (IPCC, 2007). The number of extre...
Dissolution of clay sediments in acid-sulfate systems
Dissolution clay sediments acid-sulfate systems
2012/3/30
Significant quantities of sulfidic sediments have been reported to have recently accumulated in inland wetlands of Murray Darling Basin due to a combination of long periods of inundation and the entra...
Surface Modification of Acid Activated Polyamide Fiber by Immobilizing Collagen
Collagen Immobilization Polyamide Fiber Surface Modification
2011/12/20
Collagen was immobilized onto moderate acid activated polyamide fibers with glutaraldehyde (cross-linking agent) aimed to improve its sanitary property. The immobilization of collagen onto polyamide f...
Synthesis and Properties of Copolymer of Gallic Acid and Sulfamic Acid Catalyzing by HRP/ H2O2
Enzyme Catalytic Gallic Acid Horseradish Peroxidase Polymerization
2011/11/23
A phenolic copolymer (GASA) was synthesized from gallic acid (GA) and sulfamic acid (SAA) using horseradish peroxides (HRP)/H2O2 as catalyst. The effect of the main factors on yield of the copolymer w...
Preparation, Characterization and Properties of Crosslinked Chitosan/Palygorskite Resin with Tannic Acid as Template Molecules
Chitosan (CS) Palygorskite Resin Tannic Acid Template
2011/11/14
The chitosan/palygorskite resins with tannic acid (TA) as template molecules (CPRT) were prepared by emulsion cross-linking technology. Palygorskite (PAL), a kind of natural one-dimensional clay, work...
Adsorption behavior of Cu2+ from aqueous solutions onto starch-g-poly (acrylic acid)/sodium humate hydrogels
Starch Sodium humate Hydrogel Cu2+ adsorption Complexation
2011/12/14
A series of starch-g-poly(acrylic acid)/sodium humate (St-g-PAA/SH) hydrogels were prepared and used to adsorb Cu2+ from the aqueous solution. The batch adsorption experiments were carried out by vary...
Preparation and Properties of Copolymer of Methacrylic Acid and Acrylamide onto Degraded Chitosan Initiated by HRP/H2O2/ACAC
Chitosan (CS) Graft Copolymerisation Horseradish Peroxidase Tanage
2011/12/14
The chitosan was degraded by hydrochloric acid and the effects of concentration of chitosan, amount of hydrochloric acid, reaction temperature and reaction time on the viscosity of chitosan were inves...
Effects of pH, ionic strength, temperature, and humic acid on Eu(III) sorption onto iron oxides
Iron oxides Eu(III) Sorption HA Temperature
2011/11/10
Effects of pH, Eu(III) concentration, ionic strength, temperature and humic acid (HA) on Eu(III) sorption to iron oxides were investigated in detail. The sorption of Eu(III) to iron oxides was signifi...
Sorption of uranium(VI) on Na-attapulgite as a function of contact time, solid content, pH, ionic strength, temperature and humic acid
Attapulgite U(VI) Sorption pH Ionic strength Temperature
2011/11/10
Sorption of U(VI) from aqueous solution to Na-attapulgite was investigated at different experimental chemistry conditions by using batch technique. The attapulgite sample was characterized by FTIR and...
Rapid removal of Pb(II) from aqueous solution by chitosan-g-poly(acrylic acid)/attapulgite/sodium humate composite hydrogels
composite hydrogels adsorption Pb(II) attapulgite sodium humate
2011/10/10
A series of novel granular chitosang-poly(acrylic acid)/attapulgite/sodium humate (CTSg-PAA/APT/SH) composite hydrogels were successfully prepared by one-step free radical graft polymerization and app...
Chitosan-g-poly(acrylic acid) hydrogel with crosslinked polymeric networks for Ni2+ recovery
Hydrogel Adsorption Nickel Recovery Mechanism
2011/12/13
In this study, chitosan-g-poly(acrylic acid) (CTS-g-PAA) hydrogel with crosslinked polymeric networks was prepared from an aqueous dispersion polymerization and then used as the adsorbent to recover a...