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垃圾填埋场空气中微量挥发性有机污染物的分析 被引量:16

Determination of Trace Volatile Organic Compounds from A Landfill Gas
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摘要 使用充填有Tenax、碳分子筛和硅胶的多层热解吸金属管,以0.20L/m in 的流速采集垃圾填埋场空气样品,以Tek-m ar3000/6032 和HP5890/5972 GC-MSD 组合仪器进行分析,共检测出63 种挥发性有机污染物(VOCs),其中有16 种为USEPA 优先控制污染物;通过对大多数化合物进行定量分析所得的结果表明,以苯及其衍生物含量最高,为7.94~202.55μg/m 3;其它氯代有机物含量虽然相对较低,但由于它们的毒性,因此其对环境的影响亦不容忽视. The sample was collected at a rate of 0.20 L/min from a landfill gas using a multi layer heat desorption tube filled in three different polarities solid sorbents.The qualitative and quantitative determination of trace volatile organic compounds(VOCs) was carried out through the combined purge and trap and GC MS system.63 of the VOCs including 16 of USEPA priority controlled pollutants were detected.Benzene and its derivatives have the highest concentrations range of 7.94~202.55 μg/m 3.The other pollutants such as chlorinated organic compounds,though there were a relatively low concentration,should not be overlooked due to their toxic effects.
出处 《环境科学》 EI CAS CSCD 北大核心 2000年第2期70-73,共4页 Environmental Science
基金 广东省环保局资助 广东省高教厅联合资助
关键词 有机污染物 垃圾填埋场 空气样品 大气监测 determination,volatile organic compounds,landfill gas,air sample.
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参考文献7

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