oxidation-reduction indicator

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Related to Redox indicator: Redox titration

oxidation-reduction indicator

[‚äk·sə′dā·shən ri′dək·shən ‚in·də‚kād·ər]
(analytical chemistry)
A compound whose color in the oxidized state differs from that in the reduced state.
References in periodicals archive ?
Evaluation of redox indicators and the use of digital scanners and spectrophotometer for quantification of microbial growth in microplates.
After the treatment of a biologic sample with Hcy methyltransferase and D-methionine methylsulfonium in the presence of dithiothreitol, the generated D-methionine is determined by D-amino acid oxidase, peroxidase, and the redox indicator in the presence of N-ethylmaleimide.
Five redox indicators (2,3'-diphenylamine dicar-boxylic acid, diphenylaminesulfonic acid, diphenylamine, iodine:starch, and luminol) were evaluated against hydrogen peroxide and potassium chlorate.