Kinetic fluorimetry for determination of bisphenol S in plastics based on its promoting effect on the Fenton process
| Autor: | Fuhua Jiang, Cao Guiping, Zhuang Yafeng, Wu Zeying |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Detection limit
010405 organic chemistry Inorganic chemistry urologic and male genital diseases 010402 general chemistry Kinetic energy 01 natural sciences Fluorescence Catalysis Fluorescence spectroscopy 0104 chemical sciences chemistry.chemical_compound Bisphenol S chemistry Rhodamine B Hydroxyl radical Physical and Theoretical Chemistry hormones hormone substitutes and hormone antagonists |
| Zdroj: | Reaction Kinetics, Mechanisms and Catalysis. 130:1093-1108 |
| ISSN: | 1878-5204 1878-5190 |
| DOI: | 10.1007/s11144-020-01809-5 |
| Popis: | The environmental contaminant bisphenol S (BPS) was determined by a kinetic fluorimetric method combined with Fenton process in the presence of rhodamine B (RhB). In acidic solution, the fluorescent RhB was oxidized by hydroxyl radical generated in Fenton process and produced fluorescence quenching, which was obviously accelerated by BPS added into the system. The decrease in fluorescence intensity (ΔF) was proportional to the concentration of BPS with the maximum excitation and emission wavelengths of 554 nm and 578 nm, respectively. Under the optimal conditions, the ΔF was good linear with the concentration of BPS over the range of 0.004–2.0 mg/L with a correlation coefficient of 0.9991. The detection limit of 0.73 μg/L was obtained for the determination of BPS by the proposed method. The general coexisting substances did not interfere to the reactions of BPS with Fenton reagent and RhB. The proposed method has been successfully applied to determine BPS migrated from plastic package with satisfactory results. This new method is environmentally friendly and easy to popularize. |
| Databáze: | OpenAIRE |
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