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| ASE-GC/MS法测定贵州省典型城区秋季大气PM2.5中的正构烷烃 |
| Analysis ofnAlkanes in Atmosphere PM2.5 by ASE GC/MS Method during Autumn in the Typical Urban Aera of Guizhou Province |
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| DOI： |
| 中文关键词: 正构烷烃 快速溶剂萃取 气相色谱质谱联用法 PM2.5 |
| 英文关键词: n Alkanes ASE Gas chromatography mass spectrometry PM2.5 |
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| 中文摘要: |
| 2015年秋季（9月—11月）在贵州省典型城区空气污染观测期间，使用大流量PM2.5采样仪连续7 d 采集贵州省典型城区环境空气中PM2.5。采用快速溶剂萃取(ASE)、GC-MS法测定大气PM2.5中16种正构烷烃，通过试验优化前处理条件，使方法在0.500 μg/L～100 μg/L之间线性良好，方法检出限为0.001 μg~0.005 μg。3个质量比水平的加标回收率为70.7%～91.7%，6次测定结果的RSD在1.8%～13.0%之间。 |
| 英文摘要: |
| During the air pollution observation period in the autumn of 2015 (September November) in typical urban area of Guizhou Province, PM2.5 samples were collected from typical urban environmental air in Guizhou province for seven consecutive days using a large flow PM2.5 sampler. A method of gas chromatography mass spectrometry with ASE to determine 16 n Alkanes in PM2.5 was established．The pretreatment method was optimized. The optimized method had good linearity in the concentration range of 0.500 μg/L～100 μg/L. The method detection limits were in the range of 0.001 μg ~0.005 μg. The spiked recoveries in 3 mass ratios ranged from 70.7%～91.7%. The RSDs of 6 repeated determination results ranged from 1.8%～13.0%. |
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