热解吸气相色谱双通道检测空气中TVOC  

Total Volatile Organic Compounds(TVOC) Determination of Indoor Air by Thermal Desorption/ Double Channel of GC

作　　者：贾祥焱[1] 

机构地区：[1]江苏省建筑科学研究院有限公司,南京210028

出　　处：《环境保护科学》2011年第5期56-58,66,共4页Environmental Protection Science

摘　　要：探讨了通过气相色谱仪双通道检测室内空气中总挥发性有机化合物的可行性。建立了前、后双通道的苯、甲苯、乙酸丁酯、乙苯、苯乙烯、对(间)二甲苯、邻二甲苯、正十一烷等9种典型有机污染物的外标曲线,各组分相关系数R2为0.9995～1,并通过各自的标准曲线来计算其标样考核结果,对比标样真实浓度值,验证前、后双通道的准确性以及相互之间的偏差。同时还阐述了双通道检测的优点,并进行了实际样品分析。This paper discusses the feasibility of testing total volatile organic compounds indoor through front and back double channel.Taking benzene,toluene,butyl acetate,ethylbenzene,styrene,xylene,undecane as nine typical organic pollutants to establish the curve.Each component correlation coefficient 2 is 0.999 5~1 of front and back double channel.The results of the standard samples are calculated by their respective standard curves,and it contrasts the true concentration of guide samples to verify the accuracy and deviation of the double channel.At the same time,it describes the advantages of front and back double channel,and analyzes the actual samples.

关 键 词：气相色谱 双通道 总挥发性有机化合物 空气检测 

分 类 号：X831.02[环境科学与工程—环境工程]