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- W4214597430 endingPage "118235" @default.
- W4214597430 startingPage "118235" @default.
- W4214597430 abstract "Microplastics act as a source of organic contaminants in aquatic environments and thus affect their environmental fate and toxicity. Because of the weak and reversible interactions between microplastics and organic species, the organic coronas vary with their surrounding environments. Thus, in order to evaluate the possible environmental risks of microplastics, methods for evaluating the dynamic uptake of organic contaminants onto suspended microplastics in aquatic environments are greatly desired. In this work, a UV-vis spectroscopy-based approach was developed for in-situ monitoring organic contaminants uptake onto suspended microplastics after correcting the light scattering interference from microplastics suspensions and establishing the nonlinear relationship between concentration and light absorbance of organic species. The inverse adding-doubling method based on radiative transfer theory was adopted to correct the light scattering effect of suspensions. Then, the resulting mixed absorption spectra were decomposed to calculate the concentrations of the aqueous and adsorbed organic species simultaneously with a nonlinear calibration method. The uptake processes of bisphenol A and p-nitrophenol onto nylon 66 microparticles were monitored with this approach and confirmed by high-performance liquid chromatography analysis. The approach was validated by applying it to natural water samples, and the equilibrium adsorption capacity was found to be interfered mainly by the protein-like substances. This approach has high accuracy, good reproducibility, remarkable universality, and ease of handling, and also provides a potential tool for characterizing the corona formation process on suspended particles both in natural and artificial environments, such as eco-corona formation and engineering surface modification on nano/micro-particles." @default.
- W4214597430 created "2022-03-02" @default.
- W4214597430 creator A5003423246 @default.
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- W4214597430 date "2022-05-01" @default.
- W4214597430 modified "2023-10-15" @default.
- W4214597430 title "In-situ quantitative monitoring the organic contaminants uptake onto suspended microplastics in aquatic environments" @default.
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- W4214597430 doi "https://doi.org/10.1016/j.watres.2022.118235" @default.
- W4214597430 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/35247605" @default.
- W4214597430 hasPublicationYear "2022" @default.
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