热脱附/气相色谱–质谱法检测新装修房内不同状态空气中TVOC比对

Detection of Total Volatile Organic Compounds in Indoor Air at Several State Newly Renovated Room by TD–GC–MS

采用热脱附/气相色谱–质谱联用方法对两套新装修房(完工2个月和4个月)进行通风、封闭1 h、连续使用家用空调5 h 3种状态下总挥发性有机物TVOC进行检测。结果显示完工2个月的新装修房间封闭1 h TVOC含量比通风状态增加5倍,而连续开启家用空调5 h后室内TVOC含量比通风状态增加7.9倍;完工4个月的新装修房封闭房间1 h TVOC含量比通风状态增加0.5倍,而连续开启家用空调5 h后室内TVOC含量比通风状态增加2.5倍;污染程度不同的房间在使用空调后TVOC含量也有不同的变化。

Two sets of newly renovated houses completed 2 months and 4 months were selected to detect the total volatile organic compounds （TVOC） in it by TD-GC-MS method in three states such as ventilation, closing 1h and using continuously household air conditioner for 5 h. The result showed that TVOC content in the one-hour-closed room increased five times than that in the ventilation condition, while TVOC content in continuous use of household air conditioner 5 h increased 7.9 times than it. In the newly renovated house completed 4 months, TVOC content in the one-hour-closed room increased 0.5 times than that in ventilation, while TVOC content in the continuous use of household air conditioner 5 h increased 2.5 times than it in ventilation. TVOC contents in different pollution degree rooms had different changes after using air conditioner.