Detection of polycyclic aromatic hydrocarbons in a soil sample with photon ionization technique

摘要：

　　An electron beam pumped rare gas excimer lamp (EBEL) was utilized to emit the intensive vacuum ultraviolet (VUV) radiation at 126 nm for soft single photon ionization (SPI) of polycyclic aromatic hydrocarbons (PAHs) in a soil sample.The VUV light source was coupled to a compact and mobile time-of-flight mass spectrometer (TOFMS) for the on-line measurement of PAHs.The moderate desorption temperature was set at 300 ℃ to guarantee the rapid evaporation of the PAHs in the soil sample and without decomposition from the larger molecules.With the thermal treatment,sample extraction and cleanup steps were not needed.The system developed herein was found to perform sufficiently well to evaluate the PAHs in the environmental soil sample at ppm level.

关键词： Direct sample introduction Electron beam pumped rare gas excimer lamp Soft single photon ionization Polycyclic aromatic hydrocarbons

作者: Adan LI Minzi Chen Wenfeng Guo Ralf Zimmermann

作者单位: Hebei Key Laboratory of Applied Chemistry, College of Environmental and Chemical Engineering,Yanshan Institute of Chemistry,Joint Mass Spectrometry Centre at the University of Rostock and Helmholtz Zen

会议类型: 国际会议

会议名称: 3rd International Conference on Frontiers of Manufacturing and Design Science(第三届制造与设计科学前沿国际会议(ICFMD))

会议地点: 香港

会议语种:英文

页码: 112-115

在线出版日期: 2012-12-11（万方平台首次上网日期，不代表论文的发表时间）