| 摘要: |
| 通过色谱-质谱联用法（简称GC-MS），利用低温冷阱技术对大气中的VOCs进行浓缩富集，然后经过加热解吸分别至毛细管色谱柱和FID检测器及MS检测器，对大气中98种挥发性有机化合物（VOCs）进行分离、定性、定量测定。方法检出限为0.008×10-9～0.100×10-9(V/V)；线性相关系数的平方值为0.992 7～1，相对标准偏差为4.0%～20.2%，总体标准偏差为0.154 2～0.952 1。 |
| 关键词: 环境空气 色谱-质谱联用 可挥发性有机物 |
| DOI： |
| 分类号:O657.7+1；O657.6；X831 |
| 文献标识码:B |
| 基金项目: |
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| Determination of 98 Volatile Organic Compounds in Atmosphere by GC MS |
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LIU Dianli，WANG Minggang，LAI Yanchun，ZHAO Wenjian，XU Yanmin，WANG Hui
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Liaoyang Petrochemical Company,Petreo China Co.Ltd.,Liaoyang,Liaoning 111003,China
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| Abstract: |
| A method was established for the determination of 98 volatile organic compounds (VOCs
) in atmosphere by GC MS.VOCs in atmosphere were concentrated using cold trap technology followed by thermal desorption into a capillary column for gas chromatography with FID detection and MS.The 98 VOCs were separated,qualitatively and quantitatively determined.The method detection limits ranged between 0.008 and 0.090 ppb (V/V),and the linearity coefficients R2 were between 0.992 7 and 1.The relative standard deviations were in the range of 4.0%~20.2% and the population standard deviations were in the range of 0.154 2~0.952 1. |
| Key words: Ambient air GC-MS Volatile organic compounds |
