苏玛罐-冷阱富集-GC-MS同时测定环境空气中108种VOCs

Determination of 108 Volatile Organic Compounds in Ambient Air by SUMMA Canisters Sampling and Pre-concentrated System Combined GC/MS

随着社会的发展,挥发性有机物对空气质量及人体健康的影响越来越受到人们的关注和重视,日益成为国内外研究的焦点。本文依据EPA TO-15建立了苏玛罐采样-冷阱富集-气相色谱-质谱法实现了一次进样可同时测定环境空气中108种挥发性有机物,并以此法对泉州市区某空气监测点位环境空气中VOCs进行分析测定。实验结果表明,该法测定VOCs灵敏度、回收率、检出限和精密度指标均满足环境空气中VOCs的测定要求。

A method for the determination of volatile organic compounds in environmental air by SUMMA canisters sampling and Pre-concentrated system combined GC/MS was built up in this paper and total 108 VOCs have been analyzed. The results of the quality assurance/quality control, such as sensitivity, recoveries, limit of detection and precision, implied that the methods used in the paper are suitable for qualitative and quantitative analysis of trace VOCs in air and can be widely used in ambient air VOCs analysis. The data obtained by this method will provided the basics for analyzing the variation and characteristics of VOCs in environmental air in Dalian, as well as dealing with the environmental safety problem/issues in public places.