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.
作者
王学连
周立
张丹青
杨晓燕
郑建明
刘召贵
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)
出处
《广州化工》
CAS
2020年第6期104-106,115,共4页
GuangZhou Chemical Industry