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- Title
The Application of Nafion Metal Catalyst Free Carbon Nanotube Modified Gold Electrode: Voltammetric Zinc Detection in Serum.
- Authors
Yue, Wei; Bange, Adam; L. Riehl, Bill; M. Johnson, Jay; Papautsky, Ian; R. Heineman, William
- Abstract
Metal catalyst free carbon nanotube (MCFCNT) whiskers were first used as an electrode modification material on a gold electrode surface for zinc voltammetric measurements. A composite film of Nafion and MCFCNT whiskers was applied to a gold electrode surface to form a mechanically stable sensor. The sensor was then used for zinc detection in both acetate buffer solution and extracted bovine serum solution. A limit of detection of 53 nM was achieved for a 120 s deposition time. The zinc in bovine serum was extracted via a double extraction procedure using dithizone in chloroform as a zinc chelating ligand. The modified electrode was found to be both reliable and sensitive for zinc measurements in both matrices.
- Subjects
NAFION; NANOSTRUCTURED materials synthesis; CARBON nanofibers; GOLD electrodes; CYCLIC voltammetry; ELECTROCHEMICAL sensors; CHLOROFORM; ELECTRODE testing
- Publication
Electroanalysis, 2013, Vol 25, Issue 10, p2259
- ISSN
1040-0397
- Publication type
Article
- DOI
10.1002/elan.201300158