Journal of Jishou University(Natural Sciences Edition)

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

WEI Na,TANG Jiaorong,YU Shuyi,QIU Ziqing,HUANG Xiaoxia,WANG Yilin   

  1. (1.School of Chemistry and Chemical Engineering,Guangxi University,Nanning 530004,China;2.Guangxi Key Laboratory of Biorefinery,Nanning 530004,China;3.Nanning Monitoring Station of the National Urban Water Quality Monitoring Network,Nanning 530031,China)
  • Online:2018-07-25 Published:2018-07-31


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

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