引用本文:李军,李海燕,曹俊程.低温浓缩-气相色谱/质谱法分析固定污染源废气中的丙烯腈[J].环境监控与预警,2017,9(3):24-26
LI Jun,LI Hai yan,CAO Jun cheng.Determination of Acrylonitrile Emissions from Stationary Sources Using Cryogenic Pre concentration Followed by GC/MS[J].Environmental Monitoring and Forewarning,2017,9(3):24-26
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低温浓缩-气相色谱/质谱法分析固定污染源废气中的丙烯腈
李军,李海燕,曹俊程
连云港市环境监测中心站, 江苏 连云港 222001
摘要:
建立了固定污染源废气中丙烯腈的气袋采样-低温浓缩-气相色谱/质谱分析方法。结果表明,该法在丙烯腈质量浓度16.1~4 050 μg/m3范围内具有良好的线性,相关系数R2>0.999,检出限为9.54 μg/m3,回收率、日内与日间精密度均符合质控要求,能够满足废气中丙烯腈分析的要求。
关键词:  丙烯腈  气袋  低温浓缩  气相色谱/质谱法
DOI:
分类号:X832;O657.7+1
文献标识码:B
基金项目:
Determination of Acrylonitrile Emissions from Stationary Sources Using Cryogenic Pre concentration Followed by GC/MS
LI Jun,LI Haiyan,CAO Juncheng
Lianyungang Municipal Environmental Monitoring Center Station, Lianyungang,Jiangsu 222001, China
Abstract:
This study established a method for the determination of acrylonitrile using cryogenic pre concentration followed by GC/MS.The results showed that acrylonitrile was in good linearity within 16.1~4 050 μg/m3, and the correlation coefficient was larger than 0.999. The detection limit was 9.54 μg/m3. Meanwhile, the average recovery, the with in day and inter day RSDs also met the requirements of quality control. The recoveries of spiked samples were between 86.9% and 105.3%,which were stable enough to realize extensive use.
Key words:  Acrylonitrile  Air bag  Cryogenic pre concentration  GC/MS