| 便携式GC/MS热脱附法直接测定环境空气中挥发性有机物 |
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| 引用本文： | 徐锋,钱晓曙,孙志刚.便携式GC/MS热脱附法直接测定环境空气中挥发性有机物[J].环境监测管理与技术,2010,22(2):48-50. |
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| 作者姓名： | 徐锋 钱晓曙 孙志刚 |
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| 作者单位： | 绍兴市环境监测中心站,浙江,绍兴,312000 |
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| 摘 要： | 采用便携式气相色谱/质谱联用热脱附法直接测定环境空气中的挥发性有机物,优化了试验条件。方法在5×10-9~100×10-9范围内线性良好,39种化合物的检出限为1.1μg/m3~19μg/m3,标准气体平行测定的RSD≤11.0%,回收率在80%~120%之间。
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| 关 键 词： | 挥发性有机物 便携式气相色谱／质谱联用仪 热脱附 环境空气 |
Determ ination of Volatile Organic Compoundsin Ambient Air by Thermal Desorption -Portable Gas Chromatography -MassSpectrometry |
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| XU Feng,QIAN Xiao-shu,SUN Zhi-gang.Determ ination of Volatile Organic Compoundsin Ambient Air by Thermal Desorption -Portable Gas Chromatography -MassSpectrometry[J].The Administration and Technique of Environmental Monitoring,2010,22(2):48-50. |
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| Authors: | XU Feng QIAN Xiao-shu SUN Zhi-gang |
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| Institution: | (Shaoxing Environmental Monitoring Center, Shaoxing , Zhejiang 312000, China) |
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| Abstract: | Volatile organic compounds in ambient air were directly determined by thermal desorption-porta- ble gas chromatography-mass spectrometry. By optimizing test condition, the results showed good linearity ran- ging from 5 × 10-9 to 100 × 10 -9 ; detection limits of 39 compounds between 1.1 μg/m3 and 19 μg/m3 ; RSD of parallel standard air ≤11.0% ; and spiked recoveries between 80% and 120%. |
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| Keywords: | Volatile organic compounds Portable gas chromatography-mass spectrometer Thermal desorp- tion Ambient air |
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