食品接触材料中全氟辛烷磺酸(PFOS)检测方法的研究进展

Research Progress on Detection Methods for Perfluorooctane Sulfonic Acid (PFOS) in Food Contact Materials

摘要:

全氟辛烷磺酸（PFOS）由于具有生物蓄积性、多种毒性和难降解的特点，近年来受到越来越多的国内外学者的关注。作为一种广泛存在的典型全氟化合物，PFOS通过各种途径不同程度地污染了许多日常食物，如快餐包装纸对食物的污染、一次性纸杯对饮料的污染、不粘锅涂层对饭菜的污染等，其中食品接触材料是最易被忽视的一个污染途径。PFOS具有急性毒性、肝脏毒性、神经毒性、免疫毒性、细胞毒性及生殖毒性等多种毒性作用，但在被污染的食品接触材料中，PFOS的含量往往比较低，因此对其快速准确地测定有一定的难度。本文主要综述了PFOS的毒性、PFOS在各种介质中的污染水平、PFOS向食品中的迁移状况以及检测食品接触材料中PFOS的各种方法，并对食品接触材料中PFOS的检测及其发展作出总结与展望。

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.