Search results for " sequestration by organic matter"

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Sequestration of organomettalic compounds by synthetic and naturally occuring polycarboxylate ligands. Binding of monomethylmercury(II) by polyacryli…

2007

The sequestering capacity of synthetic and naturally occurring polycarboxylate ligands towards mono- methylmercury(II) was evaluated by stability quantitative data on the interaction of CH3Hgþ with different molecular weight synthetic polyacrylates (2 and 20 kDa average M.wt) and alginate (70– 100 kDa) extracted from brown algae Macrocystis pyrifera. The influence of ionic medium was evaluated by measurements on the CH3Hgþ-polyacrylate systems in NaNO3 medium at different ionic strengths (0.10, 0.25, 0.50 and 0.75mol Lÿ1), and a Debye–Hu¨ ckel type equation was used for the dependence of complex formation constants on ionic strength. Measurements on the CH3Hgþ - alginate system were carried…

Chemical Health and SafetybiologyChemistryHealth Toxicology and MutagenesisComplex formationIonic bondingmonomethylmercury; sequestration by organic matter; polyacrylic and alginic acidsToxicologybiology.organism_classificationBrown algaemonomethylmercuryBinding abilityType equationpolyacrylic and alginic acidsmonomethylmercury sequestration by organic matter polyacrylic and alginic acids speciation equilibrium analysis complex species formationIonic strengthOrganic chemistrySettore CHIM/01 - Chimica Analiticasequestration by organic matterNuclear chemistryGroup 2 organometallic chemistry

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