摘要
针对塑料玩具中14种非邻苯二甲酸酯类增塑剂迁移量的检测,建立气相色谱-串联质谱法(GC-MS/MS)。塑料玩具样品经模拟物在37℃下振荡240 min,制得迁移溶液,迁移溶液经乙酸乙酯提取后,通过0.22μm聚四氟乙烯(PTFE)滤膜,保留滤液。目标物经TG-5SilMS色谱柱分离,在电子轰击源(EI)下,进行选择反应监测(SRM)测定,采用外标法定量,考察提取溶剂、NaCl加入量、提取次数、基质效应对目标物定量结果的影响。结果表明,在线性范围内,14种非邻苯二甲酸酯类增塑剂迁移量的相关系数均大于0.9990,检出限为0.16~0.30μg/kg,定量限为0.30~0.60μg/kg,平均加标回收率为88.7%~115.0%,相对标准偏差为0.4%~6.1%。该方法适用于塑料玩具中14种非邻苯类增塑剂迁移量的检测。
A method for detecting the migration of 14 types of non-phthalate plasticizers in plastic toys has been established using gas chromatography-tandem mass spectrometry(GC-MS/MS).Plastic toy samples were treated with simulants,shaken at 37℃for 240 min to prepare migration solutions,which were then extracted with ethyl acetate and filtered through a 0.22μm polytetrafluoroethylene(PTFE)filter,retaining the filtrate.Target analytes were separated using a TG-5SilMS chromatographic column,and selected reaction monitoring(SRM)was performed under electron impact(EI)conditions,with quantification carried out using external standards.The influences of extraction solvent,NaCl addition,extraction times,and matrix effects on the quantification results of the target compounds were investigated.The results indicated that within the linear range,the correlation coefficients of the migration of the 14 types of non-phthalate plasticizers were all greater than 0.9990,the limits of detection ranged from 0.16 to 0.30μg/kg,the limits of quantification ranged from 0.30 to 0.60μg/kg,the average recovery rates for spiking were between 88.7%and 115.0%,and the relative standard deviations ranged from 0.4%to 6.1%.The method is suitable for detecting the migration of 14 types of non-phthalate plasticizers in plastic toys.
作者
杨倩
陆嘉莉
冉露
张念
邱月
YANG Qian;LU Jiali;RAN Lu;ZHANG Nian;QIU Yue(Chongqing Academy of Metrology and Quality Inspection,Chongqing 401123,China)
出处
《塑料科技》
北大核心
2025年第6期144-151,共8页
Plastics Science and Technology
基金
重庆市科技局科研院所绩效激励引导专项(cstc2022jxjl50001)
重庆市计量质量检测研究院科研计划项目(2022(研)-12)。
