Luyue Zhao, Shu Li, Tong Wang, Sinan Wang, Jinhua Zhan, Jing Chen
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引用次数: 0
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−1 with linear range across 50–800 ng L−1 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.
全氟化合物由于其广泛使用、持久性和毒性而引起广泛关注。人们对高效、易于合成和具有成本效益的萃取吸附剂有需求。本文通过简单的工艺合成了磁性尼龙6纳米复合材料（M-Ny6），并将其作为吸附剂用于全氟辛酸（PFOA）的磁固相萃取（MSPE）。优化了MSPE工艺条件，考察了其对PFOA的吸附特性。基于M-Ny6上酰胺基团与PFOA的相互作用，采用液相色谱-串联质谱（LC-MS/MS）联用MSPE法分析了环境水和瓶装饮料中痕量PFOA的含量。该方法的检出限为1.2 ng L−1，线性范围为50 ~ 800 ng L−1，加标样品的回收率为82.3 ~ 113.0 %。实验结果表明，M-Ny6是一种极具经济效益的MSPE吸附剂，具有大规模应用于食品分析的潜力。
期刊介绍：
Food Chemistry publishes original research papers dealing with the advancement of the chemistry and biochemistry of foods or the analytical methods/ approach used. All papers should focus on the novelty of the research carried out.
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