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DOI Prefix 10.20431 |
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International Journal of Advanced Research in Chemical Science
Volume-2 Issue-5, 2015, Page No:15-21
Speciation of Glutathione Complexes of Pb(II), Cd(II) and Hg(II) in Propylene Glycol-Water Mixtures
Simhadri.N.V.V.1,Bhaskara Rao.K1,Vijaya Kumar.N1,Siva Rao.T1,Nageswara Rao.G1*
School of Chemistry, Andhra University, Visakhapatnam, India
Citation : Simhadri.N.V.V.,Bhaskara Rao.K,Vijaya Kumar.N,Siva Rao.T, Nageswara Rao.G., Speciation of Glutathione Complexes of Pb(II), Cd(II) and Hg(II) in Propylene Glycol-Water Mixtures International Journal of Advanced Research in Chemical Science. 2015;2(5):15-21.
Abstract
Speciation study on complex formation of Glutathione with Pb(II), Cd(II) and Hg(II) has been investigated pH metrically in propylene glycol-water mixtures 0.0-60.0 v/v at 303.0 K and 0.16 M ionic strength. The predominant species detected for Pb(II), Cd(II) and Hg(II) are MLH, ML2H and ML2H2. 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 complex stability constants with change in the dielectric constant of the medium is explained on the basis of electrostatic and non-electrostatic forces.
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