Separation of false-positive microplastics and analysis of microplastics via a two-phase system combined with confocal Raman spectroscopy.

Autor: Liu Y; School of Chemistry and Environment, Guangdong Ocean University, Zhanjiang 524088, China; Shenzhen Institute of Guangdong Ocean University, Shenzhen 518108, China., Jiang WY; School of Chemistry and Environment, Guangdong Ocean University, Zhanjiang 524088, China., Liao Y; School of Chemistry and Environment, Guangdong Ocean University, Zhanjiang 524088, China., Sun R; School of Chemistry and Environment, Guangdong Ocean University, Zhanjiang 524088, China., Hu J; School of Chemistry and Environment, Guangdong Ocean University, Zhanjiang 524088, China., Lu Z; Shenzhen Institute of Guangdong Ocean University, Shenzhen 518108, China; College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China., Chang M; School of Chemistry and Environment, Guangdong Ocean University, Zhanjiang 524088, China., Yang J; School of Electronic and Information Engineering, Guangdong Ocean University, Zhanjiang 524088, China., Dai Z; Shenzhen Institute of Guangdong Ocean University, Shenzhen 518108, China. Electronic address: daizq@gdou.edu.cn., Zhou C; Shenzhen Institute of Guangdong Ocean University, Shenzhen 518108, China; College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China., Hong P; Shenzhen Institute of Guangdong Ocean University, Shenzhen 518108, China; College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China., Qian ZJ; School of Chemistry and Environment, Guangdong Ocean University, Zhanjiang 524088, China; Shenzhen Institute of Guangdong Ocean University, Shenzhen 518108, China., Sun S; School of Chemistry and Environment, Guangdong Ocean University, Zhanjiang 524088, China., Ren L; Shenzhen Institute of Guangdong Ocean University, Shenzhen 518108, China; College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang 524088, China., Liang YQ; Shenzhen Institute of Guangdong Ocean University, Shenzhen 518108, China; College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang 524088, China., Zhang Y; Shenzhen Institute of Guangdong Ocean University, Shenzhen 518108, China; College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang 524088, China., Li C; School of Chemistry and Environment, Guangdong Ocean University, Zhanjiang 524088, China; Shenzhen Institute of Guangdong Ocean University, Shenzhen 518108, China. Electronic address: cyli@gdou.edu.cn.
Jazyk: angličtina
Zdroj: Journal of hazardous materials [J Hazard Mater] 2022 Oct 15; Vol. 440, pp. 129803. Date of Electronic Publication: 2022 Aug 18.
DOI: 10.1016/j.jhazmat.2022.129803
Abstrakt: In the field of microplastics research, more accurate standardised methods and analytical techniques still need to be explored. In this study, a new method for the microplastics quantitatively and qualitatively analysis by two-phase (ethyl acetate-water) system combined with confocal Raman spectroscopy was developed. Microplastics can be separated from false-positive microplastics in beach sand and marine sediment, attributing to the hydrophobic-lipophilic interaction (HLI) of the two-phase system. Results show that the recovery rates of complex environment microplastics (polypropylene (PP), polyethylene terephthalate (PET), polyvinyl chloride (PVC), polyamide 66 (PA 66), polycarbonate (PC) and polyethylene (PE)) are higher than 92.98%. Moreover, the new technique can also be used to detect hydrophobic and lipophilic antibiotics, such as sulfamethoxazole (SMX), erythromycin (EM), madimycin (MD), and josamycin (JOS), which adsorbed on microplastics and are extracted based on the dissolving-precipitating mechanism. This innovative research strategy provides a new scope for further detection of marine environment microplastics and toxic compounds adsorbed on its surface.
Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2022 Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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