便携式GC-MS测定环境空气中39种VOCs  

Portable GC-MS Determination of 39 VOCs in Ambient Air

作　　者：彭振旭 李欣 黄伶慧 黄宗鑫 Peng Zhenxu;Li Xin;Huang Linghui;Huang Zongxin(Guangxi Hongyuan Environmental Monitoring Co.,Ltd.,Qinzhou 535000,China;Qinzhou Technology Transfer Center,Qinzhou 535000,China;Guangxi Zhuang Autonomous Region Qinzhou Ecological and Environmental Monitoring Centre,Qinzhou 535000,China)

机构地区：[1]广西弘远环境监测有限公司,广西钦州535000 [2]钦州市技术转移中心,广西钦州535000 [3]广西壮族自治区钦州生态环境监测中心,广西钦州535000

出　　处：《山东化工》2024年第14期259-262,共4页Shandong Chemical Industry

摘　　要：在突发性环境污染应急监测中,运用便携式气相色谱质谱仪(GC-MS),配合气体采样探头,可实现对空气中挥发性有机物(VOCs)的现场快速定量分析。本文通过对环境空气中39种VOCs的检出限、精密度及回收率的分析,建立便携式GC-MS测定环境空气中39种VOCs的方法。该方法的检出限为1.4~4.3μg/m^(3),测定下限为5.6~17.1μg/m^(3),相关系数为0.990~0.998。此方法不仅操作简便、分析耗时短,而且具备较高的灵敏度,适用于环境空气日常监测及突发性环境污染应急监测的VOCs分析。In emergency monitoring of sudden environmental pollution,the use of portable gas chromatography-mass spectrometry(GC-MS),combined with gas sampling probes,enables rapid on-site quantitative analysis of volatile organic compounds(VOCs)in the air.This paper establishes a method for the determination of 39 VOCs in ambient air using portable GC-MS,through the analysis of detection limits,precision,and recovery rates of these compounds.The detection limit of this method is 1.4~4.3μg/m^(3),with a lower limit of 5.6~17.1μg/m^(3),with a correlation coefficient of 0.990~0.998.This method is not only easy to operate and has a short analysis time,but also has high sensitivity,making it suitable for VOCs analysis in daily monitoring of environmental air and emergency monitoring of sudden environmental pollution.

关 键 词：便携式 VOCS 环境空气 应急监测 

分 类 号：X831[环境科学与工程—环境工程] O657.63[理学—分析化学]