Issue 2, 2003

Amperometric determination of sulfide at a pre-oxidised nickel electrode in acidic media

Abstract

The electrochemical response of a pre-oxidised nickel electrode to increasing additions of sulfide has been examined and shown to produce a stripping-like voltammetric wave. A mechanism is described based on the formation of nickel sulfide at the electrode surface from a non-electroactive nickel oxide layer. The analytical utility of the approach has been examined and a linear range from 1 to 140 μM and a limit of detection of 0.8 μM is achievable, depending on the accumulation time.

Article information

Article type
Paper
Submitted
29 Oct 2002
Accepted
13 Dec 2002
First published
06 Jan 2003

Analyst, 2003,128, 173-177

Amperometric determination of sulfide at a pre-oxidised nickel electrode in acidic media

D. Giovanelli, N. S. Lawrence, L. Jiang, T. G. J. Jones and R. G. Compton, Analyst, 2003, 128, 173 DOI: 10.1039/B210665P

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