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گواهی نمایه سازی مقاله Application of N-4,4'-azodianiline(ferrocenyl Schiff base) for electrocatalytic determination of atenolol on modified carbon paste electrode

عنوان مقاله: Application of N-4,4'-azodianiline(ferrocenyl Schiff base) for electrocatalytic determination of atenolol on modified carbon paste electrode
شناسه (COI) مقاله: JR_ICC-3-1_002
منتشر شده در فصلنامه ارتباطات شیمی ایران در سال ۱۳۹۳
مشخصات نویسندگان مقاله:

Masumeh Taei - Department of Chemistry, Payame Noor University, P.O. BOX 19395-4697 Tehran, Iran
Foroozan Hasanpour - Department of Chemistry, Payame Noor University, P.O. BOX 19395-4697 Tehran, Iran
Marjan Shavakhi - Department of Chemistry, Payame Noor University, P.O. BOX 19395-4697 Tehran, Iran

خلاصه مقاله:
A carbon-paste electrode (CPE) chemically modified with the N-4,4'-azodianiline(ferrocenyl Schiff base) complex and multi wall carbon nanotubes (ADAFCNTE) was used as a highly sensitive electrochemical sensor for determination of trace amounts of atenolol. The oxidation peak potentials in cyclic voltammogram of ADAFCNTE occurred around 550 mV vs Ag/AgCl (at pH6.0) while this peak potential at the carbon paste electrode appeared around 800 mV at the same scan rate of 10 mV s−1. The kinetic parameters such as electron transfer coefficient, α, and rate constant for chemical reaction between atenolol and redox sites in modified electrode were 0.41 and 2.8×10^2 cm^3 mol^-1 s^-1, respectively. The catalytic peak current was linearly dependenton atenolol concentration in the range of 0.1-57.0 μmol L-1 with a detection limit of 0.08 μmol L-^1. Finally, the sensor was examined as a selective, simple and precise new electrochemical sensorfor the determination of atenolol in urine samples, with satisfactory results.

کلمات کلیدی:
Atenolol, N-4,4'-azodianiline ferrocene, multi wall carbon nanotubes, electrocataytic determination.

صفحه اختصاصی مقاله و دریافت فایل کامل: https://www.civilica.com/Paper-JR_ICC-3-1-JR_ICC-3-1_002.html