Nile Blue-hexacyanoferrate carbon paste modified electrode as an amperometric sensor for determination of hydrazine

Reza Emamali SABZI; Elnaz MINAIE; Khalil FARHADI; Mir Maqsoud GOLZAN

Makale detayları

Nile Blue-hexacyanoferrate carbon paste modified electrode as an amperometric sensor for determination of hydrazine

Yazarlar:

Reza Emamali SABZI | Elnaz MINAIE | Khalil FARHADI | Mir Maqsoud GOLZAN

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Chemistry 2010 Vol.34 Issue 6, pp.901-910

Belge Tipi:

Makale

Yayın Tarihi:

5/2010

Belge Dili:

Türkçe

Document ID (Org No.):

2000727947

Sıklık:

İki Aylık

eISSN:

1303-6130

pISSN:

1300-0527

Özet:

 

The main problem associated with metal hexacyanoferrates (MHCFs) is their   instability at high pH values. We synthesized a new Prussian Blue analogue,   Nile-Blue hexacyanoferrate (NBHCF), that remains stable in 0.2 M KOH. A   carbon paste (CPE) chemically modified electrode (ME) containing NBHCF was   prepared as a stable electrochemical sensor for measuring hydrazine. A   detailed characterization of the electrochemical and electrocatalytic   behavior of NBHCF was performed using cyclic voltammetric,   chronoamperometric, differential pulse voltammetric (DPV) and   hydrodynamic amperometric methods. The NBHCF-modified electrode produced   reproducible redox peaks and resulted in a linear increase in the oxidation   signal of hydrazine with increasing concentration of hydrazine in the range   of 0.1-6.0 mM (in hydrodynamic amperometry method (HDA)). The electrode   detection limit was 40 m M and possessed a surface coverage of G    = 2.0 \times  10-8 mol cm-2.

 

The main problem associated with metal hexacyanoferrates (MHCFs) is their   instability at high pH values. We synthesized a new Prussian Blue analogue,   Nile-Blue hexacyanoferrate (NBHCF), that remains stable in 0.2 M KOH. A   carbon paste (CPE) chemically modified electrode (ME) containing NBHCF was   prepared as a stable electrochemical sensor for measuring hydrazine. A   detailed characterization of the electrochemical and electrocatalytic   behavior of NBHCF was performed using cyclic voltammetric,   chronoamperometric, differential pulse voltammetric (DPV) and   hydrodynamic amperometric methods. The NBHCF-modified electrode produced   reproducible redox peaks and resulted in a linear increase in the oxidation   signal of hydrazine with increasing concentration of hydrazine in the range   of 0.1-6.0 mM (in hydrodynamic amperometry method (HDA)). The electrode   detection limit was 40 m M and possessed a surface coverage of G    = 2.0 \times  10-8 mol cm-2.

Makale detayları

Nile Blue-hexacyanoferrate carbon paste modified electrode as an amperometric sensor for determination of hydrazine

Yazarlar: Reza Emamali SABZI | Elnaz MINAIE | Khalil FARHADI | Mir Maqsoud GOLZAN

Yayıncı: TUBITAK

Dergi: Turkish Journal of Chemistry 2010 Vol.34 Issue 6, pp.901-910

Belge Tipi: Makale

Yayın Tarihi: 5/2010

Belge Dili: Türkçe

Document ID (Org No.): 2000727947

Sıklık: İki Aylık

eISSN: 1303-6130

pISSN: 1300-0527

Sayı

Yazarlar:

Reza Emamali SABZI | Elnaz MINAIE | Khalil FARHADI | Mir Maqsoud GOLZAN

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Chemistry 2010 Vol.34 Issue 6, pp.901-910

Belge Tipi:

Makale

Yayın Tarihi:

5/2010

Belge Dili:

Türkçe

Document ID (Org No.):

2000727947

Sıklık:

İki Aylık

eISSN:

1303-6130

pISSN:

1300-0527