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| 苏玛罐采样-GC-FID/MS同时测定环境空气中多种VOCs |
| Simultaneous Determination of VOCs in Air by SUMMA Canister Sampling GC FID/MS |
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| DOI： |
| 中文关键词: 挥发性有机物 预浓缩 冷柱箱 GC-FID/MS 环境空气 |
| 英文关键词: Volatile organic compounds Pre concentration Cold oven GC FID/MS Ambient air |
| 基金项目:广西重点研发计划基金资助项目（桂科AB16380292） |
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| 中文摘要: |
| 采用苏玛罐采样-大气预浓缩仪结合气相冷柱箱与Deans Switch中心切割技术，将C2～C3组分切割至HP-PLOT/Q+PT柱，用FID检测器分析，其余组分通过DB-1柱子分离后进入质谱分析，实现1次进样同时测定〖JP2〗环境空气中57种PAMS和65种TO-15。结果表明：〖JP3〗108种VOCs在015 nmol/mol~80 nmol/mol范围内线性良好，检出限为004 μg/m3~2.8 μg/m3，相对响应因子的RSD＜30%。 |
| 英文摘要: |
| With SUMMA canister sampling air preconcentrator, gas phase cold oven and Deans Switch cutting technique, C2 and C3 components were trapped into HP PLOT/Q+PT column and determined by FID detector. Other components were separated by DB 1 column and determined by mass detector(MS). It was realized for simultaneous determining 57 kind of PAMS compounds and 65 kind of TO 15 compounds in ambient air with just one injection. The results showed that 108 kinds of VOCs had good linearity in the range of 0.15 nmol/mol to 8.0 nmol/mol, the detection limits were from 0.04 μg/m3 to 2.8 μg/m3, the RSD of relative response factor was not more than 30%. |
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