GC-MS测试PVC制品中的23种邻苯二甲酸酯类增塑剂  

Determination of 23 Phthalate Acid Esters Plasticizers in PVC Plastic Particles by Gas Chromatography-mass Spectrometry

作　　者：王学连[1] 周立[1] 张丹青[1] 杨晓燕[1] 郑建明[1] 刘召贵[1] WANG Xue-lian;ZHOU Li;ZHANG Dan-qing;YANG Xiao-yan;ZHENG Jian-ming;LIU Zhao-gui(Jiangsu Skyray Instrument Co.,Ltd.,Jiangsu Kunshan 215300,China)

机构地区：[1]江苏天瑞仪器股份有限公司,江苏昆山215300

出　　处：《广州化工》2020年第6期104-106,115,共4页GuangZhou Chemical Industry

摘　　要：建立了气相色谱-质谱法测定PVC塑胶粒子中23种邻苯二甲酸酯类增塑剂的方法。样品前处理方法为超声波提取,乙酸乙酯为萃取液,正己烷沉淀絮凝高聚物,经气相色谱-质谱联用仪测定,质谱图及保留时间定性,外标法定量。样品加标回收率为72.0%~116.6%,相对标准偏差为3.1%~11.3%。该方法前处理简单,操作简便,稳定性好,可用于PVC制品中中邻苯二甲酸酯的测定。A method for the determination of 23 phthalate plasticizers in PVC plastic particles by gas chromatography-mass spectrometry was established.The sample pretreatment method was ultrasonic extraction,ethyl acetate was used as an extract,and n-hexane precipitated flocculated high polymer,which was determined by gas chromatography-mass spectrometry,and the mass spectrum and retention time were qualitatively determined by external standard method.The recoveries of the spiked samples were 72.0%~116.6%,and the relative standard deviations were 3.1%~11.3%.The method had the advantages of simple pretreatment,simple operation and good stability,and can be used for determination of phthalate in PVC plastic particles.

关 键 词：邻苯二甲酸酯 PVC GC-MS 

分 类 号：O658[理学—分析化学]