食品科学2024，Vol.45Issue(17)：226-232,7.DOI:10.7506/spkx1002-6630-20231214-110
基于GC-QTOF-MS对物理回收的食品接触用再生高密度聚乙烯中迁移物的非靶向筛查
Non-targeted Screening for Migrants in Physically Recycled Food Contact High-Density Polyethylene Using Gas Chromatography Quadrupole Time-of-Flight-Mass Spectrometry
摘要
Abstract
A total of 21 kinds of recycled high-density polyethylene(rHDPE)in contact with food were selected from three companies.Migration experiments were performed by contacting these samples with two representative food simulants(95％ethanol and 4％acetic acid)at 60 ℃ for 10 days.The migration of substances to food simulants was detected by gas chromatography quadrupole time-of-flight-mass spectrometry(GC-QTOF-MS).Altogether 161 substances were selected and classified into four grades in decreasing order of toxicity(Ⅰ-Ⅳ),among which 59 substances belonged to grades Ⅲ and Ⅳ,and their predicted octanol/water partition coefficient(XLogP)was greater than that of the substances belonging to grades Ⅰand Ⅱ.Benzene and substituted derivatives accounted for the highest proportion of all selected substances.Special attention should be paid to phenylester plasticizers,degradation products of antioxidants and polycyclic aromatic hydrocarbon(PAHs).Changes in the migration of substances from the samples were analyzed using orthogonal partial least squares-discriminant analysis(OPLS-DA),and it was found that the migration of substances from the final products was elevated compared with that from the masterbatch samples.This study can provide a theoretical basis for the analysis and safety risk assessment of migrating substances in rHDPE in contact with food.关键词
再生高密度聚乙烯/迁移/气相色谱-串联四极杆飞行时间质谱/正交偏最小二乘判别分析Key words
recycled high-density polyethylene/migration/gas chromatography quadrupole time-of-flight-mass spectrometry/orthogonal partial least squares-discriminant analysis分类
轻工纺织引用本文复制引用
张浩然,曾少甫,刘宜奇,王志伟,胡长鹰..基于GC-QTOF-MS对物理回收的食品接触用再生高密度聚乙烯中迁移物的非靶向筛查[J].食品科学,2024,45(17):226-232,7.基金项目
国家自然科学基金国际(地区)合作研究项目(32061160474) （地区）
