ELECTROCATALYTIC OXIDATION OF HYDRAZINE AT EPINEPHRINE MODIFIED GLASSY CARBON ELECTRODE (EPMGCE)

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GOLABI S.M.; MIRZAZADEH J.

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Journal Paper

Paper Information

Journal: Iranian Journal of Chemistry and Chemical Engineering Year:2003 | Volume:22 | Issue:1 Page(s): 43-54

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Title

ELECTROCATALYTIC OXIDATION OF HYDRAZINE AT EPINEPHRINE MODIFIED GLASSY CARBON ELECTRODE (EPMGCE)

Author(s)

GOLABI S.M. | MIRZAZADEH J. | Issue Writer Certificate

Keywords

EPINEPHRINE

HYDRAZINE

VOLTAMMETRY

AMPEROMETRY

MODIFIED ELECTRODE

Abstract

A thin film of EPINEPHRINE (EP) was electrochemically deposited on the surface of glassy carbon electrode previously activated in NaHCO3 solution. The cyclic voltammograms of the MODIFIED ELECTRODE indicate that the surface confined EP is strongly dependent on the solution pH, as expected for quinone/hydroquinone functionalities. The EP-modified glassy carbon electrode exhibited catalytic activity towards the electrooxidation of HYDRAZINE, which appeared as a reduced overpotential especially in pH = 7.5. The diffusion coefficient of HYDRAZINE was estimated using chronoamperometry. The catalytic rate constant, Kh, of the MODIFIED ELECTRODE for the oxidation of HYDRAZINE was determined using the cyclic voltammograms recorded at low scan rates as well as the RDE voltammetric approach. It has been shown that the EP-modified electrode can be used as an amperometric sensor in the analysis of trace amount of HYDRAZINE with high sensitivity and good limit of detection (0.83 µM). AMPEROMETRY by EP-modified electrode was used for determination of HYDRAZINE in boiler feed water and the accuracy of the results was verified by comparison with those obtained from standard ASTM method.

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APA: Copy

GOLABI, S.M., & MIRZAZADEH, J.. (2003). ELECTROCATALYTIC OXIDATION OF HYDRAZINE AT EPINEPHRINE MODIFIED GLASSY CARBON ELECTRODE (EPMGCE). IRANIAN JOURNAL OF CHEMISTRY AND CHEMICAL ENGINEERING (IJCCE), 22(1), 43-54. SID. https://sid.ir/paper/531217/en

Vancouver: Copy

GOLABI S.M., MIRZAZADEH J.. ELECTROCATALYTIC OXIDATION OF HYDRAZINE AT EPINEPHRINE MODIFIED GLASSY CARBON ELECTRODE (EPMGCE). IRANIAN JOURNAL OF CHEMISTRY AND CHEMICAL ENGINEERING (IJCCE)[Internet]. 2003;22(1):43-54. Available from: https://sid.ir/paper/531217/en

IEEE: Copy

S.M. GOLABI, and J. MIRZAZADEH, “ELECTROCATALYTIC OXIDATION OF HYDRAZINE AT EPINEPHRINE MODIFIED GLASSY CARBON ELECTRODE (EPMGCE),” IRANIAN JOURNAL OF CHEMISTRY AND CHEMICAL ENGINEERING (IJCCE), vol. 22, no. 1, pp. 43–54, 2003, [Online]. Available: https://sid.ir/paper/531217/en

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