Inhibitory Kinetic Fluorimetric Determination of Bisphenol A Based on Oxidation of Carbon Quantum Dots with Hydrogen Peroxide

doi:10.13438/j.cnki.jdzk.2018.04.014

Abstract

Abstract:

Carbon quantum dots (CQDs) were prepared by hydrothermal treatment with Lemon peel as raw material.Peroxyl radical produced by Fenton-like reagent (Fe³⁺+H₂O₂) oxidizes CQDs and produces the quenching of its fluorescence.It is found that bisphenol A (BPA) has an inhibitory effect on the redox reaction.Based on this observation,an inhibitory kinetic fluorimetric method is reported for the determination of BPA.Under the optimum experimental conditions,the linear range of the determination is 4.0~60.0 mg/L,and the detection limit (3σ/k) for BPA is 2.04 mg/L.The proposed method has been used for the determination of BPA in the shopping receipt and tap waters samples with recoveries of 93%～108%.

Key words: carbon quantum dots, inhibitory kinetic, fluorescence, determination, bisphenol A

WEI Na,TANG Jiaorong,YU Shuyi,QIU Ziqing,HUANG Xiaoxia,WANG Yilin. Inhibitory Kinetic Fluorimetric Determination of Bisphenol A Based on Oxidation of Carbon Quantum Dots with Hydrogen Peroxide[J]. Journal of Jishou University（Natural Sciences Edition), DOI: 10.13438/j.cnki.jdzk.2018.04.014.

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