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Pharmaceuticals, Pesticides, and PFAS: Quantifying Endocrine Disrupting Compounds in Plastics and Fish Tissues Using

Sophie Dolling¹, Patrick Reis-Santos¹, Mike Williams²

¹Southern Seas Ecology Laboratory, School of Biological Sciences and Environment Institute, University of Adelaide, Adelaide, South Australia, Australia.

Journal of Separation Science

|February 3, 2025

Summary

A new analytical method efficiently detects pesticides, PFAS, and pharmaceuticals in marine biota and plastics. This advancement aids understanding of chemical transport via plastic pollution and its ecological impact.

Keywords:

emerging contaminants fish microplastic plastic pollution

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Area of Science:

Environmental Chemistry
Marine Biology
Analytical Chemistry

Background:

Marine plastic pollution poses physical threats to biota.
Plastics act as vectors, sorbing and transporting hydrophobic chemical pollutants.
Understanding the link between environmental chemicals, plastic pollution, and biota effects requires integrated analytical methods.

Purpose of the Study:

To develop an efficient analytical method for detecting and quantifying a broad suite of chemical pollutants in marine biota and plastic matrices.
To compare the efficacy of different extraction techniques for analyzing target compounds.

Main Methods:

Five extraction methods were evaluated: three ultrasonic extraction techniques and two QuEChERS methods.
The analysis targeted 21 pesticides, per- and polyfluoroalkyl substances (PFAS), and pharmaceuticals.
Ultrasonic extraction in acetonitrile followed by Bond Elut Carbon Solid Phase Extraction (SPE) showed optimal recovery.

Main Results:

The optimized method efficiently quantified 16 out of 21 target compounds.
Method limits of detection (mLODs) ranged from 0.02 to 4.81 ppb.
Method limits of quantification (mLOQs) ranged from 0.06 to 14.60 ppb.

Conclusions:

An efficient analytical method was developed for simultaneous analysis of pesticides, PFAS, and pharmaceuticals in marine biota and plastics.
This method is widely applicable for routine environmental safety evaluations and monitoring protocols.
The findings support a better understanding of chemical pollution pathways in marine ecosystems.