中文摘要：

以《大气污染物综合排放标准》（GB16297—1996）中有机物的实时在线测量为目的，对自行研制的质子转移反应质谱（proton transfer reaction mass spectrometry，PTR-MS）装置的参数进行了优化和测量。利用高纯N2稀释的单一有机物PTR-MS测量结果表明，在E／N=144Td条件下，质子化的有机物离子为主要的产物离子峰，没有明显的碎片离子存在。测试了进样系统中催化转化装置的性能，给出了11种挥发性有机物的探测灵敏度和检测下限，讨论了PTR-MS的测量精度。测试结果表明，自行研制的PTR-MS能够实时在线监测《大气污染物综合排放标准》中规定的有机污染物。

英文摘要：

Parameters of homemade proton transfer reaction mass spectrometry （PTR-MS） for on-line measurements of volatile organic compounds （VOCs） restricted in ＂Integrated Emission Standard of Air Pollurants＂ （GB 16297-1996 ） were optimized and measured. The individual VOCs in pure N2 were measured at E/N = 144 Td by PTR-MS and the results show that the main ions are the protonated compound and few fragmentations exist. The sensitivity and limitation of homemade PTR-MS was obtained to 11 VOCs. The efficiency of the catalytical converter in gas inlet was tested. The precision of the PTR-MS was discussed. The results show that the homemade PTR-MS is a simple and effective tool for real time monitoring the VOCs restricted in ＂Integrated Emission Standard of Air Pollutants＂.