Abstract
An analytical procedure for determining antioxidants was proposed based on chemiluminescence. The analytical system consisted of a free-radicals generator, 2,2′-azo-bis(2-amidinopropane), luminol was used as a chemiluminescence sensitizer in phosphate buffer solution (pH 7.4). The analytical conditions were optimized. The analytical procedure detection limits as low as (μM) the following: for trolox, the limit is 0.05; for ascorbate, it is 0.20; for quercetin, it is 0.03; and, for dihydroquercetin, it is 0.03. A test determination of antioxidants in food was performed.
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Original Russian Text © A.V. Alekseev, E.V. Proskurnina, Yu.A. Vladimirov, 2012, published in Vestnik Moskovskogo Universiteta. Khimiya, 2012, No. 3, pp. 187–193.
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Alekseev, A.V., Proskurnina, E.V. & Vladimirov, Y.A. Determination of antioxidants by sensitized chemiluminescence using 2,2′-azo-bis(2-amidinopropane). Moscow Univ. Chem. Bull. 67, 127–132 (2012). https://doi.org/10.3103/S0027131412030029
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DOI: https://doi.org/10.3103/S0027131412030029