【摘要】 取过0.18 mm筛的人造板粉末0.300 0 g,在60℃水浴中进行顶空固相微萃取(SPME)30 min;用75μm CAR/PDMS纤维头富集样品释放出的挥发性有机物。使用自制简易冷阱聚焦装置,将纤维头插入气相色谱(GC)进样口解吸3 min,所得溶液采用气相色谱-质谱法检测其中的挥发性有机物。结果表明:在刨花板、中密度纤维板及胶合板中,共检出95种物质,其中苯系物27种,醛/酮类11种,烷烃类8种,醇/酯类11种,萜类物质38种。更多还原

【Abstract】 The sample was planed and 0. 300 0 g of the wood shavings( passing through 0. 18 mm sieve) was treated by headspace solid phase microextraction( SPME) for 30 min in a water bath of 60 ℃,and the volatile organic compounds( VOCs) released from the sample were enriched with an micro-extractor of 75 μm CAR/PDMS. Using a selfmade cryotrap device,the micro-extractor was inserted into the sampling inlet of GC,and desorbed for 3 min. The solution obtained was analyzed by GC-MS for its VOC contents. As shown by the results,a total of 95 VOCs were found,in samples of shaving board,medium density fiber board and plywood,including 27 benzenes,11 aldehydes/ketones,8 alkanes,11 alcohols/esters and 38 terpenoids.更多还原