Voltammetric and Polarographic Studies of Eriochrome Black T - Nickel(II) Complex

Osman ÇAKIR; Emine ÇOŞKUN; Ender Biçer & Semiha ÇAKIR

Makale detayları

Voltammetric and Polarographic Studies of Eriochrome Black T - Nickel(II) Complex

Yazarlar:

Osman ÇAKIR | Emine ÇOŞKUN | Ender Biçer & Semiha ÇAKIR

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Chemistry 2001 Vol.25 Issue 1, pp.33-38

Belge Tipi:

Makale

Yayın Tarihi:

12/2000

Belge Dili:

Türkçe

Document ID (Org No.):

2000730171

Sıklık:

İki Aylık

eISSN:

1303-6130

pISSN:

1300-0527

Özet:

 

The electrochemical behaviour of complexes of  Eriochrome Black T (EBT) with Ni(II) was studied.  It  was observed that EBT forms 1:1 and 1:2 complexes with Ni(II) in 0.1 M phosphate buffer at pH 6.0 by using Square-wave voltammetry (SWV),  Cyclic voltammetry (CV), Direct Current Polarography (Sampled DCP) and  Controlled Potential Coulometry (CPC).  It was found  that the reduction processes of Ni(II)-EBT complexes are irreversible.   The stability constants of the Ni(II)-EBT complexes were  evaluated with the DeFord-Hume procedure at different ligand  concentrations  using SWV.  The logarithm values of  stability constants of 1:1 and 1:2 Ni(II)-EBT complexes are 8.17 and  11.17, respectively.

 

The electrochemical behaviour of complexes of  Eriochrome Black T (EBT) with Ni(II) was studied.  It  was observed that EBT forms 1:1 and 1:2 complexes with Ni(II) in 0.1 M phosphate buffer at pH 6.0 by using Square-wave voltammetry (SWV),  Cyclic voltammetry (CV), Direct Current Polarography (Sampled DCP) and  Controlled Potential Coulometry (CPC).  It was found  that the reduction processes of Ni(II)-EBT complexes are irreversible.   The stability constants of the Ni(II)-EBT complexes were  evaluated with the DeFord-Hume procedure at different ligand  concentrations  using SWV.  The logarithm values of  stability constants of 1:1 and 1:2 Ni(II)-EBT complexes are 8.17 and  11.17, respectively.

Makale detayları

Voltammetric and Polarographic Studies of Eriochrome Black T - Nickel(II) Complex

Yazarlar: Osman ÇAKIR | Emine ÇOŞKUN | Ender Biçer & Semiha ÇAKIR

Yayıncı: TUBITAK

Dergi: Turkish Journal of Chemistry 2001 Vol.25 Issue 1, pp.33-38

Belge Tipi: Makale

Yayın Tarihi: 12/2000

Belge Dili: Türkçe

Document ID (Org No.): 2000730171

Sıklık: İki Aylık

eISSN: 1303-6130

pISSN: 1300-0527

Sayı

Yazarlar:

Osman ÇAKIR | Emine ÇOŞKUN | Ender Biçer & Semiha ÇAKIR

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Chemistry 2001 Vol.25 Issue 1, pp.33-38

Belge Tipi:

Makale

Yayın Tarihi:

12/2000

Belge Dili:

Türkçe

Document ID (Org No.):

2000730171

Sıklık:

İki Aylık

eISSN:

1303-6130

pISSN:

1300-0527