Voltammetric determination of facilitated ion transfer across the water/1,2-dichloroethane interface

被引：1
|
作者：
Baslak, Canan [1 ]
Atalay, Tevfik [2 ]
机构：
[1] Selcuk Univ, Inst Sci Educ, Campus Konya, Turkey
[2] Necmettin Erbakan Univ, Dept Chem, TR-42099 Meram Konya, Turkey
来源：
RUSSIAN JOURNAL OF ELECTROCHEMISTRY | 2014年 / 50卷 / 02期
关键词：
Cd2+ ion; thiosemicarbazone; cyclic voltammetry; facilitated ion transfer; ITIES; HEAVY-METAL IONS; PARTITION-COEFFICIENTS; COMPLEX-FORMATION; IONIZABLE DRUGS; ELECTROCHEMISTRY; CD(II); TRANSITION; ZN(II); PB(II); NI(II);
D O I：
10.1134/S1023193513080041
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
The facilitated transfer characteristics of Cd2+ ion by 4-morpholinoacetophenone-4-ethyl-3-thiosemicarbazone (MAPET) across water/1,2-dicholoroethane (1,2-DCE) interface and its electrochemical properties were investigated by voltammetric measurements. Cyclic voltammetry (CV) was employed to examine the transfer in the conditions of the ligand (organic phase) in excess and the obtained transfer peaks have reversible nature at different metal concentrations and scan rates. The dependence of the obtained half-wave transfer potential on MAPET concentration showed that the equilibrium is effectively displaced towards a 1: 3 (Cd2+: ligand) stoichiometry with an association constant of log beta (3) (0) = 12.96 +/- 0.09 for the Cd2+ ion, corresponding to the TIC/TID mechanism.
引用
收藏
页码：180 / 185
页数：6
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