| Abstract:A variety of volatile organic compounds (VOCs) released from different wallpapers, were determined by virtue of 1 m3 environment test chamber, auto thermal desorption (ATD) and gas chromatography/mass spectrum (GC/MS). The study on ATD experimental conditions and adsorbent selection was found that, Carbopack B/CarbosieveTM S-III adsorbent exhibited a better trap performance than conventional Tenax TA, and more suitable for the adsorption of various organic monomer. In this method, the limit ranges of detection (LODs) for various VOCs was 0.01~0.4 μg/m3. The average recovery ranged from 90% to 109%, and the relative standard deviation (RSD) was less than 11%. Test results of various commercially available wallpaper samples showed that the wallpaper material had a great effect on its released VOC composition. Paper base wallpapers emited little TVOC and released just 1-butyl alcohol and propylene glycol, whereas Non-woven wallpapers and PVC wallpapers released more toluene, styrene and 2-ethyl-1-hexanol, nonanal, naphthalene, etc. Much alkanes (straight-chained and branched-chain) were found from metal wall papers. |
