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ISSN Print: 2394-7500, ISSN Online: 2394-5869, CODEN: IJARPF

Impact Factor: RJIF 8.4

International Journal of Applied Research

Vol. 2, Issue 10, Part C (2016)

A study on the formation and confirmation of ternary complexes of phenylalanine and maleic acid with Ca (II), Mg(II) and Zn(II) metal ions in acetonitrile water mixtures

Author(s)
T Sreevaram, AVR Gajapathi Raju, N Vijaya Kumar and BBV Sailaja
Abstract
Chemical speciation of ternary complexes of Ca(II), Mg(II) and Zn(II) ions with Phenylalanine and Maleic acid was studied pH metrically in the concentration range of 0.0–60.0% v/v acetonitrile-water mixtures maintaining an ionic strength of 0.16 mol L-1 at 303.0 K. Alkalimetric titrations were carried out in different relative concentrations (M:L:X = 1:2.5:2.5, 1:2.5:5.0, 1:5.0:2.5) of metal (M) to phenylalanine (L) to maleic acid (X). Stability constants of ternary complexes were calculated and various models were refined with MINIQUAD75. The best fit chemical models were selected based on statistical parameters and residual analysis. The species detected are MLXH and ML2XH for Ca(II), Mg(II) and Zn(II) in AN-water mixtures. The chemical speciation, metal bioavailability and transportation were explained based on the stability constants.
Pages: 167-173  |  566 Views  10 Downloads
How to cite this article:
T Sreevaram, AVR Gajapathi Raju, N Vijaya Kumar and BBV Sailaja. A study on the formation and confirmation of ternary complexes of phenylalanine and maleic acid with Ca (II), Mg(II) and Zn(II) metal ions in acetonitrile water mixtures. International Journal of Applied Research. 2016; 2(10): 167-173.
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