直接法测定大气中的非甲烷烃  

Direct Determination of Non-methane Hydrocarbons in Ambient Air

作　　者：李定邦[1] 陈浩[1] 张大年[1] 

机构地区：[1]华东理工大学,上海200237

出　　处：《上海环境科学》1995年第6期26-28,共3页Shanghai Environmental Sciences

摘　　要：介绍了在2个监测点,用直接法测定大气中的非甲烷烃。测定方法的检出限可达0.0065mg/m^3,在线性范围0～10mg/m^3时,线性相关系数为O.9995,相对标准偏差为2.8％。结果表明,由于大气逆温层、工业排放源、汽车排气对非甲烷烃的浓度变化产生影响,其日变化曲线呈双峰形。Description of a direct determination method for am- bient air non-methane was presented. The detection limit was 0.0065mg/m3, with correlation coefficient of 0.9998, and the relative standard deviation of 2.8%. The concentrations of NMHC were demonstrated by temperature inversion, industrial emission sources and vehicular sources, the diurnal variation curve was bi-peak type.

关 键 词：大气污染物 环境监测方法 非甲烷烃 直接测定法 

分 类 号：X831.02[环境科学与工程—环境工程]