Title of article
CuO nanoflowers modified glassy carbon electrode for the electrochemical determination of methionine
Author/Authors
Ebrahimi ، Maryam Department of Chemistry - Graduate University of Advanced Technology , Beitollahi ، Hadi Environment Department - Institute of Science and High Technology and Environmental Sciences - Graduate University of Advanced Technology
From page
19
To page
25
Abstract
This study reported the electrochemical sensor for sensitive determination of methionine based on CuO nanoflowers (CuO NFs) supported on glassy carbon electrode (GCE). Therefore, we utilized cyclic voltammetry (CV), chronoamperometry (CHA) as well as differential pulse voltammetry (DPV) for characterizing the sensor performance. This CuO NFs/GCE has been found to have very good electrochemical catalytic activity toward methionine oxidation. The oxidation overpotential of methionine decreased significantly and its oxidation peak current increased dramatically at CuO NFs/GCE. Moreover, the sensor showed a linear response for detecting methionine in the broad ranges from 1.0-300.0 μM with a low limit of detection (LOD) equal to 0.3 μM. Finally, we employed CuO NFs/GCE as a highly sensitive tool to analyze methionine in real sample (urine).
Keywords
Electrochemical Sensor , voltammetric determination , nanosensors
Journal title
Eurasian Chemical Communications
Journal title
Eurasian Chemical Communications
Record number
2577846
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