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Pasban, A., Hossein Nia, E., Piryaei, M. (2017). Determination of Acetaminophen Via TiO2/MWCNT Modified Electrode. Journal of Nanoanalysis, 4(2), 142-149. doi: 10.22034/jna.2017.02.007
Ali Asghar Pasban; Elham Hossein Nia; Masoumeh Piryaei. "Determination of Acetaminophen Via TiO2/MWCNT Modified Electrode". Journal of Nanoanalysis, 4, 2, 2017, 142-149. doi: 10.22034/jna.2017.02.007
Pasban, A., Hossein Nia, E., Piryaei, M. (2017). 'Determination of Acetaminophen Via TiO2/MWCNT Modified Electrode', Journal of Nanoanalysis, 4(2), pp. 142-149. doi: 10.22034/jna.2017.02.007
Pasban, A., Hossein Nia, E., Piryaei, M. Determination of Acetaminophen Via TiO2/MWCNT Modified Electrode. Journal of Nanoanalysis, 2017; 4(2): 142-149. doi: 10.22034/jna.2017.02.007

Determination of Acetaminophen Via TiO2/MWCNT Modified Electrode

Article 7, Volume 4, Issue 2, Spring 2017, Page 142-149  XML PDF (936.05 K)
Document Type: Original Research Paper
DOI: 10.22034/jna.2017.02.007
Authors
Ali Asghar Pasban1; Elham Hossein Nia2; Masoumeh Piryaei 3
1Refining Technology Development Division, Research Institute of Petroleum Industry, Tehran, Iran
2Department of Chemistry, Faculty of Science, Karaj Branch, Islamic Azad University, Karaj, Iran
3Department of Biology, Faculty of Science, Payam Nour University, Tehran, Iran
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
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