Searching Nanoplastics: From Sampling to Sample Processing

Polymers

Simona Teodori¹  Loris Pietrelli¹  Marina Cerasa² 

[1] Chemistry Department, Sapienza University of Rome, Piazzale Aldo Moro, 00185 Rome, Italy;National Research Council of Italy-Institute of Atmospheric Pollution Research (CNR-IIA), Via Salaria km 29,300, 00015 Monterotondo, Italy;

关键词: nanoplastics;    microplastics;    sampling;    sample treatment;   

DOI  :  10.3390/polym13213658

来源: DOAJ

【 摘 要 】

Nanoplastics (NPs) are considered emerging pollutants, namely unregulated contaminants whose toxic effect on humans and the environment has been demonstrated or suspected. They are the result of the physical fragmentation of the plastics that over time reach smaller dimensions (<100 nm). The issues related to the characterization and quantification of NPs in the environmental matrices are mainly related to the infinitepsimal size, to the fact that they are found in bulk, and to the different physico-chemical forms in which the same polymer can evolve over time by degradation. To deal with the study of a new class of pollutants it is necessary to assess the entire analytical method, carefully considering every single step (sampling, cleanup, qualitative, and quantitative analysis) starting from the validation method in the laboratory. This paper reviews the analytical method steps, focusing on the first ones, which the current literature often underestimates: laboratory tests, sampling, and sample processing; in fact, most errors and the quality of the analyses often depend on them. In addition, all newly introduced sample processing methods were examined.

【 授权许可】

Unknown