热解分离/气相色谱-质谱法测定再生苯乙烯类聚合物中13种替代型溴系阻燃剂  

Determination of Alternative Brominated Flame Retardants in Recycled Styrene Polymers by Pyrolysis/Gas Chromatography-Mass Spectrometry

作　　者：张子豪 刘莹峰 彭莹 王晶 李全忠 翟翠萍 肖前 郑建国 ZHANG Zi-hao;LIU Ying-feng;PENG Ying;WANG Jing;LI Quan-zhong;ZHAI Cui-ping;XIAO Qian;ZHENG Jian-guo(Guangzhou Customs District Technology Center,Guangzhou 510623,China)

机构地区：[1]广州海关技术中心,广东广州510623

出　　处：《分析测试学报》2022年第10期1536-1541,共6页Journal of Instrumental Analysis

基　　金：广州海关科研项目(2022GZCK08,2020GZCK-015)。

摘　　要：采用热解分离/气相色谱-质谱联用技术建立了再生苯乙烯类聚合物中13种常见替代型溴系阻燃剂(ABFRs)的快速测定方法。样品预先剪碎制成小颗粒,在热解炉中程序升温,使13种替代型溴系阻燃剂热解析出,通过ZB-5HT INFERNO石英毛细管柱(15 m×0.25 mm×0.10μm)分离,选择离子监测模式(SIM)下进行质谱测定。在优化的热解及色谱-质谱条件下,13种目标物均在10~500 mg/kg范围内具有良好的线性关系,方法定量下限为3.2~10.5 mg/kg。样品加标回收率为85.3%~114%,相对标准偏差(RSD,n=6)不大于16%。该方法具有操作简便快速、灵敏度高及准确性好等优点,适用于再生苯乙烯类聚合物中替代型溴系阻燃剂的快速测定。A pyrolysis/gas chromatography-mass spectrometry was established for the determination of alternative brominated flame retardants(ABFRs)in recycled styrene polymers in this paper.And the pyrolysis and chromatography-mass spectrometry conditions were optimized.Samples were crushed into small particles in advance.The 13 ABFRs were pyrolyzed out of polymers by programmed heating in the pyrolysis furnace,then separated on a ZB-5HT INFERNO column(15 m×0.25 mm×0.10μm),and determined by mass spectrometry under selected ion monitoring(SIM)mode.There were linear relationships for the analytes in the range of 10-500 mg/kg,with limits of quantitation between 3.2 mg/kg and 10.5 mg/kg.The recoveries ranged from 85.3% to 114%,with relative standard deviations(RSDs,n=6)not more than 16%.This method was rapid,precise and convenient to operate,and was appropriate for the determination of ABFRs in recycled styrene polymers.

关 键 词：再生塑料 苯乙烯聚合物 替代型溴系阻燃剂 热解分离 气相色谱-质谱 

分 类 号：O657.7[理学—分析化学] TS206.4[理学—化学]