Abstract
A sensitive flow injection chemiluminescence method has been developed for the detection of resveratrol in red wine based on the fact that resveratrol can greatly enhance chemiluminescence reaction between KMnO 4 and HCHO in sulfuric acid medium. Analytes were pre-concentrated on solid sorbents (C 18 solid-phase extraction cartridges). Under the optimum conditions, the proposed method allows the measurement of resveratrol over the range of 1.32 × 10 −8 to 1.32 × 10 −5 mol/L with a detection limit of 3.30 × 10 −9 mol/L, and the relative standard deviation for 1.32 × 10 −5 mol/L resveratrol ( n = 11) is 3.8%. This method has been successfully applied for the determination of the resveratrol in red wine. Furthermore, the possible reaction mechanism was also discussed.
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