【摘要】 采用固定污染源非甲烷总烃在线监测设备与实验室气相色谱及便携式气相色谱进行数据分析，研究监测数据之间的差异。结果表明，便携式非甲烷总烃气相色谱仪测定的数据与在线连续监测设备测定数据基本一致，满足检测要求。而实验室气相色谱检测得到的手工数据容易受到外界因素的干扰，导致结果偏离较大，波动剧烈。因此，在线监测设备的监测结果较为准确，分析速度快，可连续、实时监测固定污染源气体中的非甲烷总烃的含量，从而对固定污染源中VOCs的排放进行有效监管。更多还原

【Abstract】 This study uses non methane total hydrocarbon continuous online monitoring, gas chromatography in laboratory and portable gas chromatographers to analysis the fixed pollution sources. The differences between the monitoring data were compared. The experimental results showed that the data of online continuous monitoring was consistent with the data of portable non methane total hydrocarbon gas chromatography. The manual detection had large fluctuation which was easily affected by external factors. The results of online continuous monitoring system were accurate and fast. It could be used in real-time monitoring the content of pollution gas and offered effective management the volatile organic compounds in pollution emissions.更多还原