A new 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 migration of a spot of a metal ion, with the complexants added in the background electrolyte (0.1M perchloric acid). The concentration of one of the complexants (NTA) is kept constant,while that of second ligand (threonine) is varied. A graph of log threonine against mobility is used to obtain information on the formation of mixed ligand complex and to calculate the stability constants.
S SINGH ,P MUMAR ,K L YADAVA ,R CHANDER ,S R TRIPATHI ,
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