Cost-effective magnetic Nylon 6 composites for extraction of perfluorinated compounds in water and bottled beverage followed with LC-MS/MS analysis.

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2025
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Abstract
Perfluorinated compounds are of extensive concern due to their prevalent use, persistence, and toxicities. There is a demand for extraction adsorbents that are efficient, easy to synthesize, and cost-effective. Herein, a magnetic nylon 6 nanocomposite (M-Ny6) was synthesized through a simple process and utilized as an adsorbent in magnetic solid-phase extraction (MSPE) of perfluorooctanoic acid (PFOA). The MSPE condition was optimized and the adsorption characteristics for PFOA was investigated. Based on the interaction between the amide groups on M-Ny6 and PFOA, the MSPE method was coupled with liquid chromatography-tandem mass spectrometry (LC-MS/MS) for analyzing trace levels of PFOA in environmental water and bottled beverages. The established method demonstrated a detection limit of 1.2 ng L with linear range across 50-800 ng L and satisfactory recoveries (82.3-113.0 %) in spiked samples. The experimental results indicated that M-Ny6 is a promising and cost-effective MSPE adsorbent offering potential for large-scale applications in food analysis.
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Authors Zhao, Luyue; Li, Shu; Wang, Tong; Wang, Sinan; Zhan, Jinhua; Chen, Jing
Journal Food chemistry
Year 2025
DOI
10.1016/j.foodchem.2025.143944
URL
Keywords
water lc-ms/ms beverage magnetic solid-phase extraction magnetic nylon 6 perfluorinated compounds perfluorooctanoic acid

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