SERS detection method for persistent organic pollutants in water body based on microplastics
A technology of organic pollutants and detection methods, applied in the field of SERS detection of persistent organic pollutants in water bodies based on microplastics, can solve the problems of time-consuming and laborious POPs detection
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[0060] Quantitative analysis of fluoranthene content in seawater based on microplastic in-situ extraction technology, SERS technology and chemometric analysis modeling method, qualitative and quantitative analysis of fluoranthene content on the surface of polyethylene (PE) with a particle size of 10-5000 μm , and then deduce the concentration of fluoranthene in seawater, the technical route is as follows figure 1 As shown, the specific steps are as follows:
[0061] (1) Preparation of microplastics pre-adsorbed persistent organic pollutants
[0062] Prepare a fluoranthene seawater solution with a concentration of 1-1000 μg / L, then weigh PE with a particle size of 10-5000 μm according to a volume-to-mass ratio of 1:10 (L:g), add the above-mentioned fluoranthene aqueous solution, and Vibrate at a speed of 130r / min in a constant temperature water bath (10-300μm microplastic shaking time is 1 day, 300-1000μm microplastic shaking time is 40 days, 1000-5000μm microplastic shaking t...
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