Research Progress on Detection Methods for Perfluorooctane Sulfonic Acid (PFOS) in Food Contact Materials
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Abstract:
Perfluorooctane sulfonic acid (PFOS) has attracted more and more attention from scholars at home and abroad in recent years due to its ability to bioaccumulate, toxicity and degradation-resistance. As a typical perfluorinated compound widely distributed, PFOS contaminates many daily foods in various ways, such as food contamination through fast food packaging/wrappers, beverage contamination through disposable cardboard cups, food contamination through nonstick frying pan coating, in particular, the contamination through food contact materials is the most neglected pathway. PFOS has a variety of toxic effects including acute toxicity, hepatotoxicity, neurotoxicity, immunotoxicity, cytotoxicity and reproductive toxicity. However, the content of PFOS in the contaminated food contact materials is often relatively low. Thus, rapid and accurate determination of PFOS is challenging. In this paper, the toxicity of PFOS, contamination levels of PFOS in various media, migration of PFOS to foods, and various methods for detecting PFOS in food contact materials were reviewed. The detection of PFOS in food contact materials and associated developments are summarized and future outlook is presented.
