The measurement of complexation capacity and conditional stability constants for ligands in natural waters

Effect of pH on the complexation parameters for organic matter dissolved in river water

“…The experimental procedures used to study the complexation of copper by dissolved organic matter are widely documented (Neubecker and Allen, 1983). In this work, we used DPASV to determine the concentration of labile Cu(II) (i.e.…”

Interaction between Monovalent and Multivalent Metals and Fulvic Acids A Streaming Current Detection Study

“…In addition complexing ligand sites are not discrete as a consequence of the high mo lecular weight o f FAs [29]. Therefore titration of FA solutions by metal cations and detection of the m etal-FA interaction lead to plots presenting re gions o f complexed metals and of pseudofree ones [30][31][32]. The results of complexation reactions be tween BR 6 A IN and BR 7 B IN as polyfunctional ligands and twelve metal cations o f different va lence states are shown in Fig.…”

Possibilities for Misinterpretation in ASV-Speciation Studies of Natural Waters

“…This parameter indicates the amount of ionic metal that can be taken up into non-labile complexes by (organic) ligands present in the natural sample. It can be determined by titration of the ligands with ionic copper, and careful analysis of the data [5,8,9].…”