Results 191 to 200 of about 133,410 (217)
Advanced Functional Materials, EarlyView.Fibrous benzenetrispeptide (BTP) hydrogels, fabricated via strain‐promoted azide‐alkyne cycloaddition (SPAAC) crosslinking, form robust, bioinert networks. These hydrogels can support 3D cell culture, where cell viability and colony growth depend on the fiber content.
Ceren C. Pihlamagi +5 more
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Journal of Chromatography A, 2008
The use of aqueous polyethylene glycol-inorganic salt two-phase systems for the extraction of metal ions has a great potential due to their durability, non-toxicity and relative low cost. The aqueous phases can be easily separated by centrifugation, and the operation is possible in a range of experimental conditions. The experimental results have shown
Dumitru Bulgariu
exaly +3 more sources
The use of aqueous polyethylene glycol-inorganic salt two-phase systems for the extraction of metal ions has a great potential due to their durability, non-toxicity and relative low cost. The aqueous phases can be easily separated by centrifugation, and the operation is possible in a range of experimental conditions. The experimental results have shown
Dumitru Bulgariu
exaly +3 more sources
Talanta, 2001
Fulvic acids (FAs) were extracted by alkali extraction from different soil samples in China, then purified using resins and characterized by Fourier transform infrared spectroscopy. The complexing ability of FAs was investigated by measuring the stability constants of rare earth elements (REEs) (La(3+), Ce(3+), Sm(3+), Gd(3+), Y(3+)) with FAs by the ...
Xueyuan Gu
exaly +3 more sources
Fulvic acids (FAs) were extracted by alkali extraction from different soil samples in China, then purified using resins and characterized by Fourier transform infrared spectroscopy. The complexing ability of FAs was investigated by measuring the stability constants of rare earth elements (REEs) (La(3+), Ce(3+), Sm(3+), Gd(3+), Y(3+)) with FAs by the ...
Xueyuan Gu
exaly +3 more sources
Journal of Inorganic and Nuclear Chemistry, 1977
Abstract The activity coefficient of tri- n -octylamine (TOA) hydrochloride in benzene has been determined by a vapour pressure method and has been used in calculating the stability constants of the aqueous complexes of copper(II) and zinc(II) in hydrochloric acid solution from extraction experiments with TOA in benzene.
Taichi Sato, Toshikazu Kato
exaly +2 more sources
Abstract The activity coefficient of tri- n -octylamine (TOA) hydrochloride in benzene has been determined by a vapour pressure method and has been used in calculating the stability constants of the aqueous complexes of copper(II) and zinc(II) in hydrochloric acid solution from extraction experiments with TOA in benzene.
Taichi Sato, Toshikazu Kato
exaly +2 more sources
Separation Science and Technology, 2006
Abstract Extraction of Co(II) complexes has been studied with nine derivatives of 1‐alkyl‐4(5)‐methylimidazoles (with R=C2H3 to C10H21) from aqueous solution [I=0.5(KNO3) at 25°C] with toluene, trichloromethane, and 2‐ethyl‐1‐hexanol. Stability constants of the complexes formed in the aqueous phase (β c ) as well as partition constants (P c ) of the ...
Beniamin Lenarcik +2 more
exaly +2 more sources
Abstract Extraction of Co(II) complexes has been studied with nine derivatives of 1‐alkyl‐4(5)‐methylimidazoles (with R=C2H3 to C10H21) from aqueous solution [I=0.5(KNO3) at 25°C] with toluene, trichloromethane, and 2‐ethyl‐1‐hexanol. Stability constants of the complexes formed in the aqueous phase (β c ) as well as partition constants (P c ) of the ...
Beniamin Lenarcik +2 more
exaly +2 more sources
Hydrometallurgy, 1980
Abstract The extraction of divalent zinc, cadmium and mercury from aqueous solutions containing lithium chloride using tri-n-octylphosphine oxide (TOPO) in benzene has been investigated. By applying the trial and error method of least-squares analysis to the equilibrium equation, M2+ (aq) + 2Cl− (aq) + 2TOPO (org) ⇆ MCl2 · 2TOPO (org), for these ...
Taichi Sato, Takato Nakamura
exaly +2 more sources
Abstract The extraction of divalent zinc, cadmium and mercury from aqueous solutions containing lithium chloride using tri-n-octylphosphine oxide (TOPO) in benzene has been investigated. By applying the trial and error method of least-squares analysis to the equilibrium equation, M2+ (aq) + 2Cl− (aq) + 2TOPO (org) ⇆ MCl2 · 2TOPO (org), for these ...
Taichi Sato, Takato Nakamura
exaly +2 more sources
Extraction and stability constants of copper complexes of 1,5-diphenylcarbazone
Analytica Chimica Acta, 1966H.R. Geering, J.F. Hodgson
exaly +2 more sources
Journal of Radioanalytical Chemistry, 1978
The complex formation of U(VI), Np(VI) and Pu(VI) with chloride ions was studied in HClO4−HCl solutions at ionic strength of 2.0 and [H+]=2.0M by the method of extraction chromatography using dilute HDEHP as the stationary phase.
L. Bednarczyk, I. Fidelis
openaire +1 more source
The complex formation of U(VI), Np(VI) and Pu(VI) with chloride ions was studied in HClO4−HCl solutions at ionic strength of 2.0 and [H+]=2.0M by the method of extraction chromatography using dilute HDEHP as the stationary phase.
L. Bednarczyk, I. Fidelis
openaire +1 more source
Soil Science Society of America Journal, 1981
Abstract The complexes formed between either Cd 2+ or Pb 2+ and fulvic acid extracted from sewage sludge mixtures were investigated by potentiometric titration of K/H fulvate with either Cd(ClO 4
Garrison Sposito +2 more
openaire +1 more source
Abstract The complexes formed between either Cd 2+ or Pb 2+ and fulvic acid extracted from sewage sludge mixtures were investigated by potentiometric titration of K/H fulvate with either Cd(ClO 4
Garrison Sposito +2 more
openaire +1 more source