نوع مقاله : مقاله علمی پژوهشی
نویسندگان
1 گروه شیمی، دانشگاه پیام نور، گروه شیمی، صندوق پستی 3796-19391 ،تهران، ایران
2 گروه شیمی، دانشگاه پیام نور، تهران، ایران
3 دانشگاه پیام نور
4 2 گروه زیست شناسی، دانشگاه پیام نور، صندوق پستی 3796-19391، تهران، ایران
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
A facile and sensitive method was used to fabricate a novel sensor for the determination of naproxen on the surface of multi-walled carbon nanotubes modified NiCuFe2O4 paste electrode (MWCNTs/NiCuFe2O4/CPE). Adding NiCuFe2O4 to MWCNTs effectively increased the real surface area, and most importantly, amplified the electron transfer. The surface analyses techniques perfectly certified that MWCNTs and spinel were well dispersed in graphite matrix. According to the results, MWCNTs/NiCuFe2O4/CPE produced a sharp peak for naproxen oxidation at about +0.93 vs Ag/AgCl reference electrode at pH 5.0. The proposed electrode revealed a linear response over 0.1-480 µM with a detection limit of 0.05 µM. Finally, this electrode also has the ability to determine naproxen in the presence of acetaminophen without any interference. The brilliant properties of modified electrode such as its lack of toxicity, simplicity of fabrication, and relative inexpensiveness showed that it has feasible to determine naproxen in biological samples.
کلیدواژهها [English]