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广州海关技术中心,广东 广州 510623
肖 前,研究员,研究方向:进口再生原料的分析,E-mail:xiaoq@iqtcnet.cn
纸质出版日期:2024-08-15,
收稿日期:2024-03-25,
修回日期:2024-05-17,
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张子豪,霍炜江,王晶,肖前,刘莹峰,李全忠,郑建国.基于热解分离-气相色谱-串联质谱技术测定聚合物再生原料中得克隆类衍生物[J].分析测试学报,2024,43(08):1265-1272.
ZHANG Zi-hao,HUO Wei-jiang,WANG Jing,XIAO Qian,LIU Ying-feng,LI Quan-zhong,ZHENG Jian-guo.Determination of Dechlorane Plus Derivatives in Recycled Polymer Material by Pyrolysis-Gas Chromatography-Tandem Mass Spectrometry[J].Journal of Instrumental Analysis,2024,43(08):1265-1272.
张子豪,霍炜江,王晶,肖前,刘莹峰,李全忠,郑建国.基于热解分离-气相色谱-串联质谱技术测定聚合物再生原料中得克隆类衍生物[J].分析测试学报,2024,43(08):1265-1272. DOI: 10.12452/j.fxcsxb.24032501.
ZHANG Zi-hao,HUO Wei-jiang,WANG Jing,XIAO Qian,LIU Ying-feng,LI Quan-zhong,ZHENG Jian-guo.Determination of Dechlorane Plus Derivatives in Recycled Polymer Material by Pyrolysis-Gas Chromatography-Tandem Mass Spectrometry[J].Journal of Instrumental Analysis,2024,43(08):1265-1272. DOI: 10.12452/j.fxcsxb.24032501.
采用分步热解分离-气相色谱-串联质谱(EGA-GC-MS/MS)建立了快速测定固体聚合物再生原料(再生纸浆、再生塑料)中6种新发的得克隆类衍生物的方法。样品预先切割成小块,在裂解仪中程序加热升温,使得克隆类衍生物于聚合物裂解前气化析出,以ZB-5HT石英毛细管柱为分离柱,在多反应监测(MRM)模式下使用内标法进行质谱测定。对热解分离条件、色谱和质谱条件进行了优化,在最佳实验条件下,6种得克隆类衍生物在10.0~500 μg/g范围内具有良好的线性关系,定量下限为4.5~11.4 mg/kg。再生纸浆的加标回收率为85.3%~113%,相对标准偏差(RSD,
n
=6)不大于6.4%;再生塑料聚合物的加标回收率为86.2%~116%,RSD(
n
=6)不大于7.2%。该方法无需冷冻粉碎、萃取等步骤,可直接进样分析,具有操作简便快速、灵敏度高等优点,适用于固体聚合物再生原料中得克隆类衍生物的测定。
A method for determination of dechlorane plus derivatives in solid polymer recycled materials (recycled pulp,recycled plastics) was established by stepwise pyrolysis-gas chromatography-tandem mass spectrometry(EGA-GC-MS/MS). Sample were cut up in advance and heated in the pyrolysis furnace. 6 dechloraneplus derivatives were evolving before polymer pyrolysis. The dechloraneplus derivatives were separated by ZB-5HT INFERNO column,and analyzed
using tandem mass spectrometry employing the internal standard method and multi-reaction monitoring mode (MRM). In this paper,pyrolysis and chromatography-mass spectrometry conditions were optimized. Under the optimized experimental conditions,a linear correlation of 6 dechlorane plus derivatives was observed between 10.0-500 μg/g,and quantitation limits were 4.5-11.4 mg/kg. Recycling pulp samples yielded recoveries ranging from 85.3%-113%,with relative standard deviations(RSDs) not higher than 6.4%. Recoveries of plastic polymer samples were 86.2%-116% with their RSDs(
n
=6) not higher than 7.2%. The sample can be directly injected for analysis without pre-treatment such as freezing,grinding and extraction. This method is simple,rapid and sensitive,which is suitable for qualitative analysis and determination of dechlorane plus derivatives from solid polymer regenerated raw materials.
再生塑料再生纸浆得克隆类衍生物逸出气体分析气相色谱-串联质谱
reprocessed plasticrecycled pulpsdechlorane plus derivativesevolving gas analysisgas chromatography-tandem mass spectrometry
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