引用本文:刘殿丽,王明刚,来艳春,赵文建,徐艳敏,王辉.气相色谱-质谱法测定大气中98种挥发性有机物[J].环境监控与预警,2015,7(5):34-36
LIU Dian li,WANG Ming gang,LAI Yan chun,ZHAO Wen jian,XU Yan min,WANG Hui.Determination of 98 Volatile Organic Compounds in Atmosphere by GC MS[J].Environmental Monitoring and Forewarning,2015,7(5):34-36
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气相色谱-质谱法测定大气中98种挥发性有机物
刘殿丽,王明刚,来艳春,赵文建,徐艳敏,王辉
中国石油天然气股份有限公司辽阳石化分公司,辽宁 辽阳 111003
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:
Determination of 98 Volatile Organic Compounds in Atmosphere by GC MS
LIU Dianli,WANG Minggang,LAI Yanchun,ZHAO Wenjian,XU Yanmin,WANG Hui
Liaoyang Petrochemical Company,Petreo China Co.Ltd.,Liaoyang,Liaoning 111003,China
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