在消费食品包装中对基和多基物质 (PFAS) 的评估
Kevin Stroski1, Yelena Sapozhnikova1
1USDA, Agricultural Research Service, Eastern Regional Research Center, Wyndmoor, PA, USA.
Chemosphere
|January 9, 2026
概括
一种新方法检测出9个per-和多基物质 (PFAS) 在64%的美国食品包装中. 虽然发现了PFAS,但结果表明没有从与食品接触材料转移到包装食品.
科学领域:
- 环境化学环境化学
- 食品安全 食品安全
- 分析化学 分析化学
背景情况:
- 在全球范围内,在食品和与食品接触材料 (FCM) 中检测到了和多基物质 (PFAS),这引发了人们对饮食暴露的担忧.
- 现有的分析方法可能不涵盖各种FCM中PFAS类的全部范围.
研究的目的:
- 开发和验证一种全面的方法,用于分析纸张和塑料FCM中的15个类别中的73个PFAS.
- 评估美国食品包装材料中PFAS的流行程度和含量.
主要方法:
- 甲醇提取,然后进行液体染色学-质谱学 (LC-MS/MS) 分析.
- 方法验证使用三个尖端级别和五个复制每级别的恢复和可重复性.
- 分析了66个纸质和塑料FCM,这些FCM先前与肉,猪肉,牛肉和鱼接触.
主要成果:
- 经过验证的方法实现了96-100%的分析物回收和可接受的重复性.
- 在64%的经过测试的FCM中检测到9种特定的PFAS,其度在0.11至16.3 ng/g之间.
- 6:2 diPAP是最常见的PFAS,在所有材料类型中发现了61%的样本.
结论:
- 该研究成功开发并验证了FCM中广泛的PFAS的一种强有力的分析方法.
- 美国食品包装中普遍存在PFAS污染,其中6:2 diPAP是常见的污染物.
- 目前的发现表明,没有证据表明PFAS从分析的食品接触材料转移到包装食品中.
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