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Issue 10, 2001
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Investigation of the anthracene–nitroxide hybrid molecule as a probe for hydroxyl radicals

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Abstract

A new method for the determination of hydroxyl radicals is proposed. The method is based on the use of a hybrid molecule consisting of a fluorescent chromophore, anthracene, and a nitroxide radical. In the hybrid molecule, the nitroxide quenches the fluorescence of anthracene strongly. The reaction of hydroxyl radicals with dimethyl sulfoxide generates quantitatively methyl radicals, which then combine with the nitroxide moiety of the hybrid molecules to result in an increase in the fluorescence intensity. The fluorescence increase is proportional to the concentration of hydroxyl radicals. The proposed method is capable of detecting hydroxyl radicals generated in the Fenton system. It is a simple and sensitive technique for the determination of hydroxyl radicals.

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Publication details

The article was received on 10 Apr 2001, accepted on 06 Jul 2001 and first published on 17 Sep 2001


Article type: Paper
DOI: 10.1039/B103208A
Citation: Analyst, 2001,126, 1800-1804
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    Investigation of the anthracene–nitroxide hybrid molecule as a probe for hydroxyl radicals

    X. Yang and X. Guo, Analyst, 2001, 126, 1800
    DOI: 10.1039/B103208A

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