Chemistry Letters
Online ISSN : 1348-0715
Print ISSN : 0366-7022
ISSN-L : 0366-7022
Application of a Flow-injection Spin-trapping ESR Method for Evaluating the Alkoxy Radical Elimination Capacity (AREC) of Selected Antioxidants
Akira NakajimaTomoyuki YamashitaTomoko YamaguchiKiyoshi KawaiYusuke MiyakeKenji KanaoriKunihiko Tajima
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JOURNALS RESTRICTED ACCESS Advance online publication

Article ID: 150121

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Abstract

A flow-injection spin-trapping ESR system using DMPO (5,5-dimethyl-1-pyrroline N-oxide) was developed for quantitative detection of the alkoxy radicals (•OR, R = C(CH3)2-C(+NH2Cl)NH2) formed by thermal decomposition of AAPH (2,2'-azobis(2,4-amidino-propane dihydrochloride). This system was applied to estimate the alkoxy radical elimination capacity of selected antioxidants by using Trolox (6-hydroxy- 2,5,7,8-tetramethylchroman-2-carboxylic acid), as a standard.

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