食品和食品包装中 PFAS 的分析.pdf

1、Analysis of PFAS in food and food packagingSolving the problems of“forever chemicals”in agricultureAgricultural Outlook Forum,February 27,2025Yelena SapozhnikovaUS Department of Agriculture(USDA),Agricultural Research Service(ARS),Wyndmoor,PA,USAARS mission:Develop and share solutions to agricultura

2、l problems that impact the United States Ensure a safe and high-quality food supply Develop new technologies and knowledgeProtecting public health Developing strategies and technologies to protect food from pathogens,toxins,and chemical contaminantsMeeting regulatory requirements Ensuring that food

3、and feed meet domestic and foreign regulatory requirementsImproving agriculture Enhancing the quality and utilization of agricultural commoditiesReducing foodborne pathogens Developing tests and processes to reduce and control pathogens and toxins in agricultural productsThe USDAs National Program 1

4、08,Food Safety,is a research-based program that aims to keep the U.S.food supply safeAdapted from Evich et al.Science 2022PFAS widespread contaminationDiet is a major exposure pathway:Food products Cookware and bakeware Food packaging Processing equipment Drinking water Food of animal origin is cons

5、idered one of the major pathways for human exposure According to European Food Safety Authority(EFSA),fish and other seafood account for up to 86%of dietary PFAS exposure in adultsLDQuick,easy,cheap,effective,rugged,safe,efficient,and robust(QuEChERSER)sample preparation mega-methodNew methods for P

6、FAS analysisBeefChickenCatfishPorkLiquid EggsPowdered Eggs1 g sampleQuEChERSERextraction5 mL acetonitrile/waterPFAS analysis(100)Veterinary Drugs and Pesticides(325)Pesticides and Persistent Organic Pollutants(POPs)(275)Gas chromatography-mass spectrometry analysisLiquid chromatography-mass spectrom