Systematic studies on phenol derivatives facilitates an explanation of the enhancement or inhibition of the luminol-H2O2-horseradish peroxidase system chemiluminescence. Factors that govern the enhancement are the one-electron reduction potentials of the phenoxy radicals (PhO./PhOH) vs. luminol radi
Enhanced chemiluminescence in the peroxidase-luminol-H2O2 system: Anomalous reactivity of enhancer phenols with enzyme intermediates
✍ Scribed by Hodgson, Martin ;Jones, Peter
- Publisher
- John Wiley and Sons
- Year
- 1989
- Weight
- 357 KB
- Volume
- 3
- Category
- Article
- ISSN
- 0884-3996
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✦ Synopsis
Phenols which markedly enhance chemiluminescence in the horseradish peroxidase catalysed oxidation of luminol by hydrogen peroxide show anomalously high reactivity (by factors of -102 compared with published Hammett correlations) in the reduction of the enzyme intermediates, Compound I and Compound II. The results support the hypothesis that efficient production of phenoxy radicals from phenols is a necessary criterion for chemiluminescence enhancer action.
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