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| 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 |
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| 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） |
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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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