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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.
Concentration of Omega-3 Polyunsaturated Fatty Acids from Rana Egg Oil by Urea Complexation and Response Surface Methodology
Omega-3 Polyunsaturated Fatty Acids Oil
2016/6/2
The optimum enrichment parameters of main omega-3 polyunsaturated fatty acids (ω-3 PUFAs) from Rana egg oil were investigated. Firstly, it was optimized the saponification condition. Secondly, the PUF...
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...
Investigation of Surfactant–Stain–Metal Interaction: Naphthochrome Green/Cetyltrimethylammonium Bromide/Rare Earths Ternary Complexation
Langmuir aggregation cetyltrimethylammonium bromide naphthochrome green
2009/11/16
The ternary interaction of naphthochrome green (NCG) with cetyltrimethylammonium bromide (CTAB) and rare earths (REs: Yb, Dy, Er and Eu) has been investigated with the microsurface adsorption–spectral...
Phospholipid-Nucleic Acid Complexation: Biomolecular Energetics of DNA-Mg2+-Phosphatidylcholine Ternary Complex Formation, Compaction and Relevance as Lipoplex Formulation
polyelectrolyte phospholipid - polynucleotide nanostructures differential scanning microcalorimetry thermotropic phase behaviour non-viral gene delivery
2009/4/20
Thermodynamic features related to preparation and use of self-assemblies formed between multilamellar and unilamellar zwitterionic liposomes and polynucleotides with various conformation and sizes are...
IDHA Concentration and Purification from the Marine Heterotrophic Microalga Crypthecodinium cohnii CCMP 316 by Winterization and Urea Complexation
DHA PUFAs Crypthecodinium cohnii winterization
2009/3/4
A simple and inexpensive procedure involving saponification and methylation in wet biomass, winterization and urea complexation in a sequential way has been developed in order to concentrate docosahex...
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...
Influence of β - cyclodextrin complexation on lovastatin release from osmotic pump tablets (OPT)
β-Cyclodextrin Inclusion complex Elementary osmotic pump (EOP)
2010/4/8
An extended-release osmotic dosage form was designed and the effect of β-cyclodextrin (BCD) inclusion complexation on the solubility of lovastatin in aqueous media was investigated. The lovastatin BCD...
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 ...