聚丙烯熔喷专用料中VOCs的测定  

Determination of VOCs in polypropylene melt blown special materials

作　　者：苏凤仙 陈建梅 徐哲峰 Su Fengxian;Chen Jianmei;Xu Zhefeng(Research Institute of Sinopec Yizheng Chemical Fibre Co.,Ltd.,Yizheng Jiangsu 211900,China;Jiangsu Key Laboratory of High Performance Fiber,Yizheng Jiangsu 211900,China)

机构地区：[1]中国石化仪征化纤有限责任公司研究院,江苏仪征211900 [2]江苏省高性能纤维重点实验室,江苏仪征211900

出　　处：《合成技术及应用》2022年第4期53-58,共6页Synthetic Technology & Application

摘　　要：本文采用顶空气相色谱法测定聚丙烯熔喷专用料中挥发性有机物(VOCs)含量,通过探索色谱柱和柱温条件确定较佳的色谱条件,采用气质联用法对VOCs组分定性,以丙酮计对总挥发性有机物(TVOC)定量,通过加热平衡时间和加热平衡温度的正交实验确定较佳的顶空进样器条件,通过探索样品颗粒尺寸、称样量等条件确定较佳的样品前处理条件,建立聚丙烯熔喷专用料中VOCs含量的分析方法,此方法精密度相对标准偏差为1.75%,回收率范围为91.36%~105.30%,检出限为1.98μg/g,重复性好,准确度高,能满足聚丙烯熔喷专用料测试的需求。In this paper,the content of VOCs in polypropylene melt blown special materials is determined by headspace gas chromatography.The better chromatographic conditions were determined by exploring the chromatographic column and column temperature conditions.The VOCs were qualitatively determined by GC-MS,and the total volatile organic compounds(TVOC)were quantitatively measured by acetone.Then,the better headspace sampler conditions were determined by orthogonal experiments of heating equilibrium time and heating equilibrium temperature.The better sample pretreatment conditions were determined by weighing the sample quantity and other conditions.The analytical method for VOCs content in polypropylene melt blown special materials was established.The relative standard deviation of this method was 1.75%,the recovery range was 91.36%~105.30%,and the detection limit was 1.98μg/g,good repeatability and high accuracy,which can meet the requirements of testing polypropylene melt blown special materials.

关 键 词：聚丙烯熔喷专用料 挥发性有机物 顶空进样器 

分 类 号：O659[理学—分析化学]