Speciation studies of L-histidine complexes of Pb(II), Cd(II) and Hg(II) in Dioxan-water mixtures

K Bharath, Kumar Naik, S Raju, B Kumar, G Rao
2011 Der Pharma Chemica   unpublished
The appropriateness of experimental conditions is verified by introducing errors intentionally in the concentrations of ingredients. The models containing different numbers of species were refined by using the computer program MINIQUAD75. The best-fit chemical models were arrived at based on statistical parameters. The trend in variation of stability constants of the complexes with dielectric constant of the medium is attributed to the electrostatic and non-electrostatic forces. The species
more » ... ribution and the plausible equilibria for the formation of the species are also presented.