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Effects of thin-layer diffusion in the electrochemical detection of nicotine on basal plane pyrolytic graphite (BPPG) electrodes modified with layers of multi-walled carbon nanotubes (MWCNT-BPPG)

Abstract:

The oxidative electrochemistry of nicotine is measured in aqueous solution at a multi-walled carbon nanotube modified basal plane pyrolytic graphite (MWCNT-BPPG) electrode. Quantitative detection of nicotine is obtained with a limit of detection of 1.5 μM (based on 3σ) and a linear range of at least up to 1 mM. Evidence is found for a mass transport regime that includes thin-layer (within the MWCNT layers) as well as semi-infinite (from bulk solution) diffusional signatures, adding to the gro...

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Publication status:
Published

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Publisher copy:
10.1016/j.snb.2009.10.055

Authors


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Institution:
University of Oxford
Department:
Oxford, MPLS, Chemistry, Physical and Theoretical Chem
Role:
Author
Journal:
SENSORS AND ACTUATORS B-CHEMICAL
Volume:
144
Issue:
1
Pages:
153-158
Publication date:
2010-01-29
DOI:
ISSN:
0925-4005
URN:
uuid:369b7437-61f4-486b-9bb6-fc8e86a121ac
Source identifiers:
50326
Local pid:
pubs:50326

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