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Photoelectrochemical determination of ascorbic acid using methylene blue immobilized in alpha-zirconium phosphate

Abstract:

Photoelectrochemical analysis of ascorbic acid is reported in aqueous solution at a platinum channel electrode using the dissolved phenothiazine dyes methylene blue and methylene green. This is achieved by measuring the current produced by immediate electrooxidation of the reduced form of the dyes produced during the 1:1 photoreaction between the dyes and ascorbic acid induced by visible light. This behavior is similar to that reported previoulsy for toluidine blue, and rate constants for the...

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Publication status:
Published

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Authors


Cooper, JA More by this author
Woodhouse, KE More by this author
Chippindale, AM More by this author
More by this author
Institution:
University of Oxford
Department:
Oxford, MPLS, Chemistry, Physical and Theoretical Chem
Journal:
ELECTROANALYSIS
Volume:
11
Issue:
17
Pages:
1259-1265
Publication date:
1999-11-05
DOI:
EISSN:
1521-4109
ISSN:
1040-0397
URN:
uuid:d84943e3-762a-4cbb-a0e4-500a0a73d9af
Source identifiers:
37272
Local pid:
pubs:37272

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