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Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 57, Number 3
JKCSEZ 57(3)
June 20, 2013

Title	Electro-Catalytic Oxidation of Amoxicillin by Carbon Ceramic Electrode Modified with Copper Iodide
Author	Ghasem Karim Nezhad*, Ali Pashazadeh, Sara Pashazadeh
Keywords	Electrocatalytic oxidation, Copper iodide, Sol-gel, Carbon ceramic electrode, Amoxicillin
Abstract	Copper iodide was employed as a modifier for preparation of a new carbon ceramic electrode. For the first time, the catalytic oxidation of amoxicillin (AMX) was demonstrated by cyclic voltammetry, chronoamperometry and amperometry methods at the surface of this modified carbon ceramic electrode. The copper iodide modified sol-gel derived carbon ceramic (CIMSGD- CC) electrode has very high catalytic ability for electrooxidation of amoxicillin. The catalytic oxidation peak current was linearly dependent on the amoxicillin concentration and the linearity range obtained was 100 to 1000 μmol L-1 with a detection limit of 0.53 μmol L-1. The diffusion coefficient (D=(1.67±0.102)×10-3 cm2 s-1), and the kinetic parameter such as the electron transfer coefficient (α) and exchange current density (j0) for the modified electrode were calculated. The advantages of the modified CCE are its good stability and reproducibility of surface renewal by simple polishing, excellent catalytic activity and simplicity of preparation.
Page	322 - 328
Full Text	PDF

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