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- W2891694301 abstract "Abstract A fluorescent sensor based on the electrosynthesized conjugated polymer poly(Fmoc- l -serine) (PFOLS) for highly sensitive analysis of Cr2O72− at ultra-trace levels in water and agro-product samples was reported. PFOLS was obtained by potentiostatical electropolymerization of corresponding monomer Fmoc- l -serine in CH2Cl2-boron trifluoride diethyl etherate system. The introduction of serine group in PFOLS efficiently avoided the interference of anions and other acid substances in agro-products. Although metal ion Fe3+ could also quench the fluorescence of PFOLS, EDTA could recover the fluorescence of PFOLS-Fe3+ system. So in the presence of EDTA, PFOLS had a high-selectivity to Cr2O72− and it could detect Cr2O72− in linear ranges of 80 pM to 1.95 mM with a low detection limit of 72 pM. Then PFOLS was used to detect Cr2O72− in water samples (tap water, lake water, and wastewater) and agro-product samples (white rice, red rice, and black rice) with satisfactory results, revealing that PFOLS could be as a practical sensing platform for ultra-trace analysis of Cr2O72− in environment and agro-product samples." @default.
- W2891694301 created "2018-09-27" @default.
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- W2891694301 date "2018-12-01" @default.
- W2891694301 modified "2023-10-18" @default.
- W2891694301 title "Highly sensitive fluorescent sensor based on electrosynthesized poly(Fmoc-l-serine) enables ultra-trace analysis of Cr2O72− in water and agro-product samples" @default.
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- W2891694301 doi "https://doi.org/10.1016/j.snb.2018.09.046" @default.
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