HU Jun-peng,XI Xiao-xiang,DAI Hang,LIU Cheng-hao,CHEN Rong-qiao,LIANG Ming,XIAN Yan-ping,WU Yu-luan,HOU Xiang-chang,ZHANG Hao-he.Determination of 4,4'-Dichlorophenyl Sulfone Migration from Plastic Food Contact Material Products by Surface Enhanced Raman Spectroscopy[J].Journal of Instrumental Analysis,2024,43(07):1025-1031.
建立了食品接触用塑料材料及制品中4,4'-二氯二苯砜迁移量的表面增强拉曼光谱测定方法。首先对制备的金纳米颗粒(AuNPs)进行表征,并通过理论计算对4,4'-二氯二苯砜的拉曼特征峰进行归属。随后参照GB 31604.1-2015和GB 5009.156-2016的规定进行食品接触用塑料材料及制品中4,4'-二氯二苯砜的迁移实验,将迁移液与AuNPs混合后进行SERS测试,并采用高效液相色谱法进行验证。4,4'-二氯二苯砜的特征峰(748 cm
Surface enhanced Raman spectroscopy(SERS) was used to detect the migration of 4,4'-dichlorophenyl sulfone from plastic food contact materials. Au nanoparticles were prepared for SERS substrate and characterized,then the Raman characteristic peaks of 4,4'-dichlorophenyl sulfone were assigned by theoretical calculation. The migration behavior of 4,4'-dichlorophenyl sulfone in plastic food contact material products was carried out according to the GB 31604.1-2015 and GB 5009.156-2016. The obtained solution was passed through a 0.22 μm filter membrane,and mixed with AuNPs to perform SERS test,and the results were validated by high performance liquid chromatography(HPLC). The intensity of the characteristic peak(748 cm
-1
) of 4,4'-dichlorophenyl sulfone showed a good linear relationship with the mass concentration of 4,4'-dichlorophenyl sulfone in the range of 0.05-10 mg/L,and the correlation coefficient was 0.992 8,the recoveries of SERS method were 85.2%-93.4% with the relative deviations of 4.2%-6.6%,meanwhile,these results were in good agreement with the HPLC. The proposed method was applied to the determination of 4,4'-dichlorophenyl sulfone in 5 brands of polyphenylene sulfone(PPSU) milk bottles.
This method is rapid,accurate and user friendly,and provides a technical reference for the determination of 4,4'-dichlorophenyl sulfone in food contact materials and products.
关键词
表面增强拉曼光谱4,4'-二氯二苯砜金纳米颗粒食品接触用塑料材料及制品迁移量
Keywords
surface enhanced Raman spectroscopy4,4'-dichlorophenyl sulfoneAu nanoparticlesplastic food contact material productsmigration
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Related Author
LI Zi-cheng
ZHANG Hai-feng
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DONG Ben
CHEN Yan-fen
ZENG Ying
CHEN Sheng
ZHONG Huai-ning
Related Institution
Guangzhou Customs District Technology Center
Zhejiang Institute of Product Quality and Safety Science
Zhejiang University of Science & Technology
National Reference Laboratory for Food Contact Material(Guangdong),Guangzhou Customs District Technology Center
National Packaging Product Quality Supervision and Inspection Center(Guangzhou),Guangzhou Quality Supervision and Testing Institute