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文章摘要
正压罐采样-预浓缩-GC/MS法测定空气中痕量卤代烃
Determination of Trace Halogenated Hydrocarbons in Air by Canister Collecting-Preconcentration-GC/MS
  
DOI:
中文关键词: 卤代烃  预浓缩  气质联用法  环境空气
英文关键词: Halogenated hydrocarbon  Preconcentration  GC-MS  Ambient air
基金项目:山东省自然科学基金资助项目(ZR2020ZD21)
作者单位
由希华 山东省生态环境监测中心 
张凤菊 山东省生态环境监测中心 
李琳 山东省生态环境监测中心 
曹方方 山东省生态环境监测中心 
李红莉 山东省生态环境监测中心 
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中文摘要:
      采用正压罐采样预浓缩GC/MS法同时测定空气中16种卤代烃,通过优化试验条件,使16种痕量卤代烃在30min内实现分离,目标物分别在40 pmol/mol~200 pmol/mol和5 pmol/mol~100 pmol/mol范围内线性良好,方法检出限为4 pmol/mol~55 pmol/mol。标准气体6次测定结果的RSD为1.0%~7.2%,空白样品加标回收率为72.5%~125%。
英文摘要:
      16 halogenated hydrocarbons in air were simultaneously determined by canister collecting-preconcentration-GC/MS. By optimizing the test conditions, 16 trace halogenated hydrocarbons were separated within 30 min. The target objects had good linearity in the range of 40 pmol/mol to 200 pmol/mol and 5 pmol/mol to 100 pmol/mol. The method detection limits were from 4 pmol/mol to 55 pmol/mol. The RSDs of 6 measurements of standard gas ranged from 1.0% to 7.2%. The recoveries of blank samples were from 72.5% to 125%.
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