An amperometric biosensor based on modified nanoparticles with an electron transfer mediator for the determination of phenol derivatives

2011 ◽  
Vol 22 ◽  
pp. S64
Author(s):  
Emre Çevik ◽  
Mehmet Şenel ◽  
Abdülhadi Baykal ◽  
Mustafa Fatih Abasiyanik
Keyword(s):  
Electron Transfer ◽  
Amperometric Biosensor ◽  
Electron Transfer Mediator ◽  
Phenol Derivatives

Amperometric determination of nitrite using natural fibers as template for titanium dioxide nanotubes with immobilized hemin as electron transfer mediator

2018 ◽  
Vol 185 (3) ◽  
Author(s):  
Balasubramanian Ranjani ◽  
Jayaprakasham Kalaiyarasi ◽  
Loganathan Pavithra ◽  
Thiyagarajan Devasena ◽  
Kannaiyan Pandian ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Titanium Dioxide ◽  
Natural Fibers ◽  
Amperometric Determination ◽  
Titanium Dioxide Nanotubes ◽  
Electron Transfer Mediator

A new class of amperometric biosensor incorporating a polymeric electron-transfer mediator

1989 ◽  
Vol 111 (9) ◽  
pp. 3482-3484 ◽  
Author(s):  
Paul D. Hale ◽  
Toru Inagaki ◽  
Hiroko I. Karan ◽  
Yoshi Okamoto ◽  
Terje A. Skotheim
Keyword(s):  
Electron Transfer ◽  
Amperometric Biosensor ◽  
Electron Transfer Mediator ◽  
New Class

scholarly journals Cobalt Hexacyanoferrate-Decorated Titania Nanotube: CoHCF@TNT Modified GCE as an Electron Transfer Mediator for the Determination of Hydrazine in Water Samples

2012 ◽  
Vol 2012 ◽  
pp. 1-8 ◽  
Author(s):  
S. Jancy Sophia ◽  
S. Devi ◽  
K. Pandian
Keyword(s):  
Electron Transfer ◽  
Environmental Samples ◽  
Xrd Analysis ◽  
Calibration Plot ◽  
Current Response ◽  
Electron Transfer Mediator ◽  
Cobalt Hexacyanoferrate ◽  
Titania Nanotube ◽  
Ft Ir

The cobalt hexacyanoferrate-decorated titania nanotube (CoHCF@TNT) was prepared by dispersing 100 mg of titania nanotube (TNT) to a solution of an equimolar concentration of CoCl2 · 6H2O and K3[Fe(CN)6] containing 0.05 M KCl solution (35 mL). The TNT was synthesized by hydrothermal method using Degussa P-25 TiO2 in 2 M NaOH as reported in the literature. The CoHCF@TNT was isolated and characterized by DRS-UV, FE-SEM, FT-IR, and XRD analysis. The electrochemical behavior of the CoHCF@TNT was carried out in 0.1 M phosphate buffer. The CoHCF@TNT modified system showed an excellent electron transfer mediator for the oxidation of hydrazine at +0.5 V versus Ag wire. The proposed method can be utilized for the amperometry detection of hydrazine from environmental samples. A calibration plot was constructed by plotting the concentration of hydrazine against the peak current. The current response was linear in the ranges of the hydrazine concentration from 5 × 10−4 M to 2.5 × 10−3 M with a slope of 72.8 μAmM−1 and the linear correlation coefficient of 0.9972. The detection limit was found to be 1 × 10−3 M.

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