固相吸附GC-MS分析新装居室室内气体中的有机污染物

Analysis of indoor air pollutants in new decorated rooms by GC-MS with solid-phase adsorption

采用活性炭对放置一段时间的新装居室内气体和新购书橱内气体进行吸附,吸附气体后的活性炭经乙醚洗脱,洗脱液经氮气浓缩,进行GC-MS分析。分析出室内空气污染物包括烷烃、烯烃、醇、酮、醛、酯以及苯系物等25种有机物,书橱内污染气体共鉴定出24种有机物,其中苯系物量最高,烷烃和烯烃量最低。

Air pollutants in new decorated rooms and an bookcase were analyzed by GC-MS with adsorption on active carbon. 25 kinds of organic pollutants were identified in indoor air and 24 kinds in the bookcase including alkane, alkene, alcohol, ketone, aldehyde, ester and benzene series. Among them, the contents of benzene series were 7.8 × 10^-4μL/L in indoor air and 3.0 × 10^-3 μL/L in the bookcase, respectively.