Title of article
Determination of Acetaminophen Via TiO2/MWCNT Modified Electrode
Author/Authors
Pasban, Ali Asghar , Hossein Nia, Elham Department of Chemistry - Faculty of Science - Karaj Branch - Islamic Azad University, Karaj , Piryaei, Masoumeh Department of Biology - Faculty of Science - Payam Nour University, Tehran
Pages
8
From page
142
To page
149
Abstract
Electrochemical behaviour of acetaminophen at the multi wall carbon nanotubes/titanium
dioxide (MWCNT/TiO2) composite film modified glassy carbon electrode (GCE) via solvent
casting method was studied. It is shown that the MWCNT/TiO2/GCE exhibits remarkable
improvement in analytical response as compared to other electrodes. Comparing the
responses of the MWCNT/TiO2/GCE with that obtained at the unmodified glassy carbon
electrode, the peak currents were enhanced significantly by 8.5 folds (oxidation peak) and
11.0 folds (reduction peak), which showed stable response with enhanced selectivity and
sensitivity. A linear calibration plot having a correlation coefficient of 0.991 was obtained in the
concentration range of 0.01-0.12 mM acetaminophen. The detection limit for the detection
of acetaminophen was calculated as 11.77 μM based on 3 σ/m. The method was applied in
the determination of acetaminophen in commercial tablets. The recoveries of the composite
modified electrode obtained were 95.2 and 96.2% for five determinations.
Keywords
Multi wall carbon nanotubes , Titanium dioxide nanoparticles , Composite , Acetaminophen , Cyclic voltammetry
Journal title
Astroparticle Physics
Serial Year
2017
Record number
2437888
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