Fabrication of CuO nanoparticle/ionic liquid modified carbon paste electrode:Application for simultaneous determination of hydrazine and bisphenol A inwater samples
محل انتشار: دوازدهمین سمینار سالانه الکتروشیمی ایران
سال انتشار: 1395
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 447
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شناسه ملی سند علمی:
ELECTROCHEMISTRY012_108
تاریخ نمایه سازی: 5 آذر 1397
چکیده مقاله:
In the present research, we report the application of synthesized copper oxide nanoparticles toghether with n-hexyl-3-methylimidazolium hexa-fluoro-phosphate in the constructuion of the modified carbon paste electrode (CuO/NP/IL/CPE) as high sensitive electrochemical sensor for simultaneous determination of hydrazine (HY) and bisphenol A (BPA). The electrochemical properties of CuO/NP/IL/CPE was carefully studied in aqueous media, using cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), chronoamperometry and differential pulse voltammetry (DPV). The electron transfer coefficient (α), diffusion coefficient (D), and electron transfer resistant (Ret) of HY at the modified electrode were calculated. The experimental results show that, under optimized conditions, the modified electrode promoted electron transfer reaction for the oxidation of HY and BPA. The linear dynamic range were obtained in the ranges of 0.05– 150 and 0.2–175 L-1 with the detection limits (3sb/m) 0.03 and 0.1 L-1 for HY and BPA, respectively. Finally, this new sensor was used for simultaneous determination of HY and BPA in some water samples such as river water and wastewater using the standard addition method.
کلیدواژه ها:
نویسندگان
Nader Teymoori
Electroanalytical Chemistry Research Laboratory, Department of Analytical Chemistry, Faculty of Chemistry,University of Mazandaran, Babolsar, Iran
JahanBakhsh Raoof
Electroanalytical Chemistry Research Laboratory, Department of Analytical Chemistry, Faculty of Chemistry,University of Mazandaran, Babolsar, Iran
Mohammad A Khalilzadeh
Department of Chemistry, Qaemshahr Branch, Islamic Azad University, Qaemshahr, Iran
Reza Ojani
Electroanalytical Chemistry Research Laboratory, Department of Analytical Chemistry, Faculty of Chemistry,University of Mazandaran, Babolsar, Iran