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Searching Nanoplastics: From Sampling to Sample Processing.

Marina Cerasa1, Simona Teodori2, Loris Pietrelli2

  • 1National Research Council of Italy-Institute of Atmospheric Pollution Research (CNR-IIA), Via Salaria km 29,300, 00015 Monterotondo, Italy.

Polymers
|November 13, 2021
PubMed
Summary
This summary is machine-generated.

Nanoplastics (NPs) are tiny plastic pollutants. This review emphasizes crucial early steps in analytical methods for detecting NPs in the environment, highlighting sampling and sample processing for accurate results.

Keywords:
microplasticsnanoplasticssample treatmentsampling

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Area of Science:

  • Environmental Science
  • Analytical Chemistry
  • Toxicology

Background:

  • Nanoplastics (NPs) are emerging pollutants with suspected environmental and human toxicity.
  • NPs result from plastic fragmentation, reaching sizes below 100 nm.
  • Characterizing and quantifying NPs is challenging due to their small size, bulk presence, and degradation-induced variations.

Purpose of the Study:

  • To review analytical method steps for nanoplastic detection.
  • To focus on often underestimated early stages: laboratory tests, sampling, and sample processing.
  • To examine newly introduced sample processing methods.

Main Methods:

  • Review of existing literature on analytical methods for nanoplastic analysis.
  • Focus on laboratory validation, sampling strategies, and sample preparation techniques.
  • Examination of novel sample processing methodologies.

Main Results:

  • Analytical method quality is heavily influenced by initial steps like sampling and processing.
  • Current literature often underestimates the importance of these early analytical stages.
  • New sample processing methods have been investigated.

Conclusions:

  • Accurate nanoplastic detection requires rigorous validation of the entire analytical workflow, especially initial steps.
  • Underestimation of sampling and sample processing can compromise nanoplastic analysis.
  • Further research into optimized sample processing is essential for advancing nanoplastic environmental monitoring.