Abstract: To study the influence of environmental tobacco smoke(ETS)on indoor air quality,a method for determining 11 VOCs(including 1,3-butadiene,isoprene,acryl nitrile,benzene,toluene,styrene,m-xylene,ethyl benzene,propyl benzene,1,3,5-trimethylbenzene,and limonene)in ETS was developed.The VOCs mentioned above in the air inside the test cabinet were collected by triple adsorbent of Tenax TA,Carbosieve,and Carbotrap and analyzed by thermal desorption/gas chromatography/flame ionization detection.The 11 VOCs in ETS of 10 brands of cigarette were determined.The results showed that:1)the triple adsorbent was suitable for the collection of the 11 VOCs in ETS and the optimum conditions were sampling at 200 mL/min of air flow rate for 30 minutes and desorbed at 300℃ for 10 minutes;2)the recoveries of the 11 VOCs ranged from 85.9% to 98.3% with RSD from 8.5% to 16.8%,limit of detection from 0.28 to 1.58 μg/m3 and limit of quantification from 0.94 to 5.28 μg/m3;3)the contents of the 11 VOCs in ETS between imported and domestic or flue-cured and blended cigarettes showed no significant difference,and the content of isoprene was the highest among the 11 VOCs of all of these cigarettes.