VOCs在线监测系统与SUMMA罐采样-气质联用法的比对分析

摘要

将挥发性有机污染物在线监测系统与实验室内SUMMA罐采样气质联用法(GC-MS)的挥发性有机物分析进行了标准气体和实际空气样品的分析比对,并对偏差原因作分析,提出在线监测系统的维护建议.结果表明,挥发性有机物在线监测系统的监测结果与实验室方法有一定的可比性,可用于大气中挥发性有机污染物的在线监测.%The volatile organic compounds ( VOCs) in standard gas and actual air samples were analyzed by using on-line VOCs monitoring system and SUMMA canister sampling-GC-MS.The two methods were compared . The causes of deviation were analyzed .Suggestions on operation and maintenance of on-line VOCs monitoring system also were proposed .The results showed that on-line VOCs monitoring system and the laboratory analysis method were comparable .On-line VOCs monitoring system could be applied in determining VOCs in the atmos-phere.