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Hilbert transform of voltammetric data

Arundell, Martin, Patel, Bhavik Anil, Yeoman, Mark S., Parker, Kim H. and O'Hare, Danny (2004) Hilbert transform of voltammetric data Electrochemistry Communications, 6, (4), pp. 366-372. (doi:10.1016/j.elecom.2004.02.003).

Record type: Article

Abstract

The use of the fast Fourier transform (FFT) assumes stationarity and, in many applications, linearity; assumptions that are often invalid in the analysis of voltammetric data. Empirical mode decomposition followed by the Hilbert transform offers an alternative mode of analysis that can overcome these difficulties. The validity of the Hilbert transform for the analysis of non-linear signals merits application to electrochemistry which, to our knowledge, has not been carried out before. Preliminary results, for three well-characterised redox processes: (i) a thermodynamically reversible electron transfer; (ii) formation of a passivating layer; (iii) growth of an oxide layer on an electrode surface, suggest that it can provide useful and novel insights into electrochemical processes. A less well-characterised process, the adsorption of 5-hydroxytryptamine (5-HT) oxidation products on the surface of a glassy carbon electrode, is also investigated using the Hilbert transform

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More information

Published date: April 2004
Keywords: hilbert transform, sinusoidal perturbations, 5-Hydroxytryptamine (5-HT, non-linear, non-stationary, instantaneous frequency

Identifiers

Local EPrints ID: 155847
URI: http://eprints.soton.ac.uk/id/eprint/155847
ISSN: 1388-2481
PURE UUID: 64e793aa-fabe-470e-aa89-1dafc04dc8c5

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Date deposited: 02 Jul 2010 14:31
Last modified: 18 Jul 2017 12:44

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Contributors

Author: Martin Arundell
Author: Bhavik Anil Patel
Author: Mark S. Yeoman
Author: Kim H. Parker
Author: Danny O'Hare

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