Detection of a strong ligand for copper in sea water and determination of its stability constant
1994; Elsevier BV; Volume: 284; Issue: 3 Linguagem: Inglês
10.1016/0003-2670(94)85066-6
ISSN1873-4324
AutoresTakashi Midorikawa, Eiichiro Tanoue,
Tópico(s)Molecular Sensors and Ion Detection
ResumoAbstract A method for the detection and characterization of an organic ligand with a high conditional stability constant but a low concentration in natural waters is proposed. The method is based on a combination of a procedure that involves the ligand-exchange reaction between natural ligands and chelating ragents and the analysis of the experimental results on metal speciation by a simple equilibrium model. Application of this method to samples of sea water from different marine environments suggested the presence of a strong ligand for copper in most samples of sea water examined. The lower limits of the concentration of the strong ligand in oceanic water were evaluated to be
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