固相吸附-色谱-质谱测定大气中有机污染物

摘要

应用固相吸附-色谱-质谱方法,对石化厂区挥发性有机污染物进行分析测定,其中有25种有机物组分检测出,借助于混合吸附剂代替单一吸附剂,对8种有机物进行了回收率试验,苯的回收率小于85%.%The analysis and determination on VOCs of petrochemical plant are carried out in this article by solid phase adsorption chromatography- mass spectrometry. The results show that 25 kinds of organic constituents are detected,among which eight organic chemicals are tested by hybrid adsorbent other than mono agent in terms of recovery rate,the benzene recovery is less than 85%.