【摘要】 室内空气挥发性有机物(Volatile Organic Compounds,VOCs)污染问题日益引起关注与重视,选择一种合适的检测方法对于室内空气污染的研究尤为重要。采用Tenax树脂吸附采样、在线式吹脱捕集仪热解吸进样、HP-5毛细管柱分离、氢火焰离子化检测器(hydrogenflame inonization decector,FID)检测的方法建立了室内空气挥发性有机物的快速分析方法:TenaxGC吸附/热解吸毛细管气相色谱法。确定了最佳采样条件和化合物的定性定量方法,分析了采样效率、分离效果。研究结果表明,该方法采样便捷,样品预处理方便,回收率高,样品测定准确,适合环境空气中低浓度VOCs的测定。更多还原

【Abstract】 Indoor air pollution caused by volatile organic compounds(VOCs)attached more attention. It was important to select an appropriate analysis method. The method used in the study consisted of VOCs collection by a minitype air pump,Tenax adsorption-thermal desorption and automatic separation analyzed by capillary gas-chromatography with flame lonization detector(GC/FID). The results show that a absorption/thermal desorption gas chromatography method is developed for the analysis of volatile organic compounds(VOCs)indoors. The optimum of collection,desorption,analysis parameter are selected,and the qualitative analysis and quantitative analysis of the volatile organic compounds is stuidied. The proposed method is simple and reliable,and can be used to determine trace volatile organic compounds in indoor air.更多还原