摘要
目的建立食品塑料包装材料中4种替代型塑化剂(APs)的气相色谱-质谱测定方法。方法优化前处理方法和气相色谱质谱条件,提高方法对4种APs的分离度和灵敏度。水基、酸性和酒精类(除95%乙醇)模拟物(V(正己烷)∶V(二氯甲烷)=11∶)用超声提取,氮吹至近干复溶后测定,异辛烷和95%乙醇模拟物直接旋蒸近干复溶后测定。结果4种APs在曲线范围内线性关系良好,相关系数大于0.99,检出限为0.02~0.3 mg/kg,定量限为0.05~1.0 mg/kg。空白食品模拟物的加标回收实验结果表明,4种APs的回收率范围为70.4%~117.8%,相对标准偏差(RSD)为0.8%~11.0%。结论该方法前处理操作简单,灵敏度高,定量定性准确度好,为食品塑料包装材料中APs迁移量的测定和分析提供了参考。
The work aims to establish a gas chromatography-mass spectrometry method for the determination of four alternative plasticizers(APs)in plastic food packaging materials.The pretreatment method and gas chromatography conditions were optimized to improve the separation and sensitivity of the four APs.For water-based,acidic and alcohol-based(except 95%ethanol)simulants,ultrasonic extraction was performed with n-hexane:dichloromethane=1:1(V/V),and the samples were concentrated by nitrogen blowing to near dryness and then re-dissolved for determination.For isooctane and 95%ethanol simulants,direct rotary evaporation to near dryness and re-dissolution were carried out for determination.The four APs showed good linear relationships within the curve range,with correlation coefficients>0.99.The detection limits were 0.02-0.3 mg/kg,and the quantification limits were 0.05-1.0 mg/kg.The results of the spiked recovery experiments on blank food simulants indicated that the recovery rates of the four Aps were 70.4%-117.8%,and the relative standard deviations(RSD)were 0.8%-11.0%.The pretreatment operation of the method is simple,with high sensitivity and good accuracy in both quantitative and qualitative analysis,providing a reference for the determination and analysis of APs migration in plastic food packaging materials.
作者
张凤艳
李环亭
王婷
刘彩
罗忻
蒋万枫
杜宇峰
殷冀煜
李建兵
ZHANG Fengyan;LI Huanting;WANG Ting;LIU Cai;LUO Xin;JIANG Wanfeng;DU Yufeng;YIN Jiyu;LI Jianbing(Qingdao Testing Research Institute of Product Quality,Shandong Qingdao 266100,China;Technology Center of Qingdao Customs,Shandong Qingdao 266100,China;Qingdao Institute for Food and Drug Control,Shandong Qingdao 266100,China)
出处
《包装工程》
北大核心
2025年第15期132-137,共6页
Packaging Engineering
基金
山东省市场监督管理局科研计划项目(sdscjgj2024sp08)
山东省政府公派出国留学项目(2024)。
关键词
食品包装材料
塑料
替代型塑化剂
食品模拟物
迁移量
food packaging materials
plastic
alternative plasticizers
food simulants
migration
