Title of article
NiO nanoparticle/1-hexyl-3-methylimidazolium hexafluorophosphate composite for amplification of epinephrine electrochemical sensor
Author/Authors
Saghiri ، Soheila Department of Chemistry - Islamic Azad University, Mashhad Branch , Ebrahimi ، Mahmoud Department of Chemistry - Islamic Azad University, Mashhad Branch , Bozorgmehr ، Mohammad Reza Department of Chemistry - Islamic Azad University, Mashhad Branch
From page
46
To page
52
Abstract
In this research study, NiO nanoparticle (NiO-NPs) was synthesis using a simple strategy method (chemical precipitation), then it was utilized for amplification of paste electrode (PE) at the presence of paraffin oil and 1- hexyl-3-methylimidazolium hexafluorophosphate (HPF6). NiO nanoparticle was characterized using the transmission electron microscopy (TEM) and energy-dispersive X-ray spectroscopy (EDS) method. The NiO-NPs/HPF6/PE was used as electrochemical sensor for determination of epinephrine in pharmaceutical and urine samples. The sensor improved the oxidation signal of epinephrine about 2.87 times. The pH investigation confirmed that the electro-oxidation of epinephrine was relative to pH changing in the presence two electrons and two protons. The square wave voltammetric investigation showed that the oxidation current of epinephrine has linear relation with its concentration in the range 1.0 nM-300 μM with detection limit 0.5 nM.
Keywords
Epinephrine , NiO nanoparticle , 1 , Hexyl , 3 , methylimidazolium , hexafluorophosphate , Modified sensor
Journal title
Asian Journal of Nanoscience and Materials
Journal title
Asian Journal of Nanoscience and Materials
Record number
2567030
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