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- W2992232335 abstract "This work describes an electrochemical-assisted desorption method that has been developed for solid-phase extraction of metal ions (Pb2+), based on a well-ordered conducting sorbent: an array-like polyaniline nanofiber synthesized on the surface of graphene oxide (PANI-GO). Combining the advantages of the allowable mechanical deformation of GO with the reduced ionic-diffusion path of vertical PANI nanofibers, this method's synergistic effect lends the prepared sorbent an enhanced stability and high analyte-desorption effectiveness. In terms of the adsorption and electrochemical-assisted desorption behavior of PANI-GO, the paper reports that the adsorption/desorption process is accompanied by the changes of the as-prepared sorbent in cyclic voltammetry, and that the prepared PANI-GO exhibits good anti-interference properties across various interference ions. Given optimal pH values, the limit of detection of the proposed method is 0.04 μg L-1; the repeatability relative standard deviation (RSD) and reproducibility RSD are 1.97% and 2.51%, respectively; and the method shows good recovery capability in the case of real beverage samples spiked with Pb2+." @default.
- W2992232335 created "2019-12-13" @default.
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- W2992232335 date "2020-03-01" @default.
- W2992232335 modified "2023-10-16" @default.
- W2992232335 title "Conductive polyaniline-graphene oxide sorbent for electrochemically assisted solid-phase extraction of lead ions in aqueous food samples" @default.
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- W2992232335 doi "https://doi.org/10.1016/j.aca.2019.11.070" @default.
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