Objective:

To develop a miniaturized platform for monitoring pollutant adsorption on microplastics with minimal solvent use and high throughput, addressing the urgent need for innovative solutions in environmental pollution.

Key Findings:

• Chlorpyrifos showed over 90% recovery on LDPE, indicating strong adsorption and potential environmental risks.
• Adsorption behaviors varied significantly among pesticides, with dichlorvos adsorbing more on PP than LDPE, highlighting the complexity of pollutant interactions.
• The platform improves quantitative data reliability by being unaffected by matrix effects, which is essential for accurate environmental assessments.

Interpretation:

The study highlights the importance of understanding microplastics as vectors for hazardous chemicals, emphasizing the need for innovative, low-impact analytical methods in environmental monitoring to mitigate pollution risks.

Limitations:

• Initial challenges with SPME fiber conditioning and cleaning affected reproducibility, suggesting a need for further optimization.
• The study focused on specific pollutants, limiting the generalizability of findings to other contaminants, indicating a need for broader studies.

Conclusion:

This greener analytical approach can enhance the understanding of microplastics' role in environmental pollution and supports future research on various hazardous chemicals, ultimately contributing to better environmental health outcomes.