Статья
2018

Determination of Stability Constants of Cadmium(II) Complexes with Diallyl Disulfide, Dimethyl Disulfide and Diallyl Sulfide Using Differential Pulse Voltammetry


Mohammad Ali Kamyabi Mohammad Ali Kamyabi , Fatemeh Soleymani-Bonoti Fatemeh Soleymani-Bonoti , Saeed Zakavi Saeed Zakavi
Российский электрохимический журнал
https://doi.org/10.1134/S1023193517110039
Abstract / Full Text

The study of the binding of heavy metal ions by organosulfur compounds of garlic is especially important for the understanding of many biological systems. Cadmium is a non-essential heavy metal known to be one of the most toxic environmental pollutant.Interactions between cadmium and diallyl disulfide (DADS), dimethyl disulfide (DMDS) and diallyl sulfide (DAS) were investigated by differential pulse voltammtery. Determination of the stability constants of cadmium(II) with DADS, DMDS and DAS complexes was based on the DeFord–Hume methodology that calculated from the dependence of the shift of cadmium( II) peak potential upon addition of the ligands DADS, DMDA and DAS separately. The results of this study provide evidence of the formation of 1: 1 and 1: 2 complexes between cadmium(II) and DADS, DMDS and DAS with stability constants (β) in the range of ca. 105.8–106.2 and 109.6–1010.6 respectively.

Author information
  • Department of Chemistry, University of Zanjan, Zanjan, 45195-313, Iran

    Mohammad Ali Kamyabi & Fatemeh Soleymani-Bonoti

  • Department of Chemistry, Institute for Advanced Studies in Basic Sciences, Gava Zang, Zanjan, 45137-66731, Iran

    Saeed Zakavi

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