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High cadmium pollution from sediments in a eutrophic lake caused by dissolved organic matter complexation and reduction of manganese oxide
eutrophication lake pollution dissolved organic matter DOM DGT
2021/7/27
Eutrophication and metal pollution are global environmental problems. The risk of metal pollution is high in the eutrophic lakes because of high mobility of metal in sediments.
Photochemical, microbial and metal complexation behavior of fluorescent dissolved organic matter in the aquatic environments
photodegradation microbial degradation metal complexation
2017/4/12
Chemical properties and reactivity of fluorescent dissolved organic matter (FDOM) are examined in this paper. They
are key issues to understand the biogeochemical processes in the aquatic environment...
Enantioselective complexation of chiral lariat crown ethers and chiral primary alkylammonium perchlorates
Chiral lariat crown ethers enantioselectivity complexation properties molecular recognition NMR titration
2011/4/6
In order to investigate the enantiomeric recognition abilities toward 2 chiral alkylammonium perchlorates (AmI, AmII) by 1H-NMR titration method in CDCl3, 4 chiral lariat ethers 8-11 with a (p-methoxy...
Kinetic Spectrophotometric Determination of N-Acetyl-L-cysteine Based on a Coupled Redox-Complexation Reaction
Kinetic Spectrophotometric Determination N-Acetyl-L-cysteine Coupled Redox-Complexation Reaction
2010/9/20
A novel simple kinetic spectrophotometric method for the determination of N-acetyl-L-cysteine (NAC) has been developed and validated. The proposed method is based on a coupled redox-complexation react...
Solvent Effects on Complexation of Molybdenum(VI) with Nitrilotriacetic Acid in Different Aqueous Solutions of Propanol
solvent effect molybdenum(VI)
2007/12/20
摘要 By using spectrophotometric and potentiometric techniques the formation constants of the species formed in the systems H＋＋Mo(VI)＋nitrilotriacetic acid and H＋＋nitrilotriacetic acid have been determi...
Photochemical control of copper complexation by dissolved organic matter in Rocky Mountain streams, Colorado
Photochemical control of copper complexation dissolved organic matter Rocky Mountain streams Colorado
2014/4/23
We investigated photochemical, seasonal, and source effects on copper (Cu) complexation by dissolved organic matter (DOM). Cu-DOM complexation regulates Cu toxicity by decreasing the activity of the c...
Investigation of the Cation Complexation by Macrocyclic Ethers using 13C NMR Spin--Lattice Dipolar Relaxation Time Measurements
Investigation the Cation Complexation Macrocyclic Ethers using 13C NMR Spin--Lattice Dipolar Relaxation
2010/4/19
The binding constants (Ka) of [18]crown-6 ether with Na+ , K+, and Ba2+ thiocyanates were determined by 13C{1H} NMR spin--lattice dipolar relaxation time measurements. The observed relaxation times (T...
A Semi-Empirical Study on Metal Ion/Murexide Complexation
Murexide complexation glycerol metal ion
2010/4/22
Modeling of the metal ion/ligand complexation reactions between divalent metal cations (M2 + ) and hydrophilic tridentate ligand murexide (Mu- ) in water, water+glycerol, and in glycerol was carried o...
Importance of acid polysaccharides for 234Th complexation to marine organic matter
Importance of acid polysaccharides 234Th complexation marine organic matter
2014/5/26
In order to study the role of polysaccharides (PS) in the colloidal organic matter (COM) pool for complexing 234Th, controlled laboratory experiments were carried out to determine the chemical nature ...
Organic complexation of copper in surface waters of Galveston Bay
copper waters Galveston Bay
2014/5/30
The importance of colloidal ligands in the organic complexation of Cu was elucidated in the estuarine waters of
Galveston Bay by use of a number of instrumental techniques. Ultrafiltration was ...
Complexation of Benzoate Ligand With the Divalent d10 Acceptors at Different Temperatures
benzoate complexes zinc compound cadmium compound
2010/6/29
The complex formation between zinc(II), cadmium(II), mercury(II) and benzoate ions was studied potentiometrically with glass electrode at different temperatures. The measurements have been performed i...
Neptunium(V) Sorption on Montmorillonite: An Experimental and Surface Complexation Modeling Study
Diffuse-Layer Model Montmorillonite Neptunium Sorption Surface Complexation
2011/12/8
Abstract: Batch sorption experiments at fixed initial Np(V) concentration (…1 】 10−6 M 237Np), M/V ratio (4 g L−1), and ionic strength (0.1 molal NaNO3) were conducted to determine the eff...