SciELO - Scientific Electronic Library Online

vol.63Alum an efficient catalyst for Erlenmeyer synthesisSynthesis, characterization and thermal studies of Co(II), Ni(II), Cu(II) and Zn(II) complexes of some Schiff bases derived from 4-amino-3-mercapto-6-methyl-5-oxo-1,2,4 triazine author indexsubject indexarticles search
Home Pagealphabetic serial listing  

South African Journal of Chemistry

On-line version ISSN 1996-840X
Print version ISSN 0379-4350


TEWARI, Brij B.. Interaction of hydroxyproline with bivalent metal ions in chemical and biological systems. S.Afr.j.chem. (Online) [online]. 2010, vol.63, pp.162-167. ISSN 1996-840X.

A recent technique involving the use of paper electrophoresis is described for the study of equilibria in binary complex systems in solution. The stability constants of the ML and ML2 complex species of some metal ions, namely beryllium(II) and cobalt(II), with hydroxyproline were determined in 0.1 mol L-1 perchloric acid and a temperature of 35 °C. The logarithm stability constants of the ML and ML2 complexes of hydroxyproline were found to be 7.39 ± 0.07 and 5.90 ± 0.03, and 4.73 ± 0.08 and 3.71 ± 0.11 for the beryllium(II) and cobalt(II) complexes, respectively.

Keywords : Hydroxyproline; paper electrophoresis; stability constants.

        · text in English     · English ( pdf )


Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License