Application of electrophoresis technique for evaluating stability constant of ternary complexes
Journal Article
·
· Journal of the Electrochemical Society; (United States)
- Univ. of Allahabad (India)
A method involving the use of paper electrophoresis is described for the study of equilibria in mixed ligand complex systems in solution. This method is based on the development of a spot by migration of a metal ion, with the complexants added in the background electrolyte (0.1 M perchloric acid). For the study of ternary complexes, the concentration of adenosine monophosphate (AMP) is kept constant, while that of a second ligand nitrilotriacetate (NTA) is varied. A graph of mobility against [minus]log [NTA] is used to obtain information on the formation of mixed ligand complexes and to calculate the stability constants. The overall stability constants of complexes of M-AMP and M - AMP - NTA system have been found to be 10[sup 2.8], 10[sup 8.2] for Zn(II) and 10[sup 2.9], 10[sup 8.5] for Ni(II) complexes, respectively, at 30 C and [mu] = 0.1.
- OSTI ID:
- 6444297
- Journal Information:
- Journal of the Electrochemical Society; (United States), Journal Name: Journal of the Electrochemical Society; (United States) Vol. 140:3; ISSN 0013-4651; ISSN JESOAN
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400102* -- Chemical & Spectral Procedures
ACCURACY
AMINO ACIDS
AMP
CARBOXYLIC ACIDS
CHELATING AGENTS
COMPLEXES
DATA
ELECTROPHORESIS
EXPERIMENTAL DATA
INFORMATION
LIGANDS
NICKEL COMPLEXES
NTA
NUCLEOTIDES
NUMERICAL DATA
ORGANIC ACIDS
ORGANIC COMPOUNDS
PERFORMANCE
STABILITY
TRANSITION ELEMENT COMPLEXES
ZINC COMPLEXES
400102* -- Chemical & Spectral Procedures
ACCURACY
AMINO ACIDS
AMP
CARBOXYLIC ACIDS
CHELATING AGENTS
COMPLEXES
DATA
ELECTROPHORESIS
EXPERIMENTAL DATA
INFORMATION
LIGANDS
NICKEL COMPLEXES
NTA
NUCLEOTIDES
NUMERICAL DATA
ORGANIC ACIDS
ORGANIC COMPOUNDS
PERFORMANCE
STABILITY
TRANSITION ELEMENT COMPLEXES
ZINC COMPLEXES