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An investigation into the reaction of hemin-catalysed luminol oxidation by peroxy compounds

Paper ID Volume ID Publish Year Pages File Format Full-Text
28445 44075 2006 10 PDF Available
Title
An investigation into the reaction of hemin-catalysed luminol oxidation by peroxy compounds
Abstract

The oxidation of luminol by organic peroxy compounds catalysed by hemin was studied. The influence of the reaction conditions and the structure of the oxidant on CL emissions was evaluated. It was found that the light intensity produced during the reaction of peroxy acids and diacyl peroxides was not substantially influenced by substitution. Peroxyesters and hydroperoxides behaved differently and their structure strongly affected the light yield. No light was detected from dialkyl peroxides under investigative conditions. The results imply that hydroperoxides and peroxy acids are intermediate in peroxyesters and diacyl peroxide reactions, respectively. In the case of peroxyesters, the rate of the hydrolysis step is light-yield determining. A mechanism was proposed to explain the behaviour of peroxy compounds toward luminol and hemin.

Keywords
Chemiluminescence; Peroxy compounds; Luminol; Hemin
First Page Preview
An investigation into the reaction of hemin-catalysed luminol oxidation by peroxy compounds
Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 183, Issues 1–2, 30 September 2006, Pages 111–120
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering