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. 2023 May 10;2(2):61–73. doi: 10.1016/j.eehl.2023.04.005

Fig. 1.

Fig. 1

Sequential separation and concentration of microplastics and NPLs by membrane filtration and CPE, followed by Py-GC/MS determination. Reprinted with permission from ref. [32]. Copyright (2021) American Chemical Society. NPLs, nanoplastics; CPE, cloud point extraction; Py-GC/MS, pyrolysis gas chromatography–mass spectrometry.