Journal
JOURNAL OF APPLIED ELECTROCHEMISTRY
Volume 39, Issue 7, Pages 1145-1151Publisher
SPRINGER
DOI: 10.1007/s10800-008-9773-2
Keywords
Multi-walled carbon nanotubes (MWNTs); Active electrode area; Capacitance; Acetaminophen; Drug analysis
Categories
Funding
- Science Foundation of Department of Education of Hubei Province, P. R. China [D200515003]
- Hubei Key Lab of Novel Reactor & Green Chemical Technology
Ask authors/readers for more resources
The active electrode area, capacitances, and resistances of MWNT-film coated glassy carbon electrodes with different amount of MWNTs have been characterized by cyclic voltammetry and chronoamperometry. They are varied by controlling the amount of MWNTs dispersed on the electrode surface and affect the voltammetric responses of analytes in liquids. The redox current of acetaminophen is enhanced on the MWNT-film coated electrodes due to the enlarged active electrode area. The oxidation of acetaminophen occurs at 0.34 V and the reduction occurs at 0.27. Two electrons and two protons participate in the reversible redox reaction. The diffusion-controlled anodic peak current is proportional to the concentration of acetaminophen from 5.0 to 0.1 mM with a detection limit of 2.4 mu M. The determination of acetaminophen in pharmaceutical formulations was also conducted.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available