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The electrochemical analog of the methylene blue reaction: A novel amperometric approach to the detection of hydrogen sulfide

Abstract:
The electrochemical oxidation of N,N-dimethylphenylenediamine at glassy carbon electrodes in aqueous solution in the pH range 3-6 is shown to lead to currents which are considerably amplified in the presence of dissolved hydrogen sulfide. The mechanism of the electrode process is investigated and the reaction is shown to provide an attractive basis for the amperometric sensing of sulfide with an accessible range of ca. 3 to 150 μM (0.1 to 4.8 ppm).
Publication status:
Published

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Authors


Lawrence, NS More by this author
Jones, TGJ More by this author
Davies, SN More by this author
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Journal:
ELECTROANALYSIS
Volume:
12
Issue:
18
Pages:
1453-1460
Publication date:
2000-12-05
DOI:
EISSN:
1521-4109
ISSN:
1040-0397
URN:
uuid:b5d0464b-801c-421d-a75c-d8e4bb328006
Source identifiers:
37645
Local pid:
pubs:37645

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