4Kazunari Kume, Takeshi Ohura, Takashi Amagai. Field monitoring of volatile organic compounds using passive air samplers in an industrial city in Japan.Environmental poUution, 2007, 153(3)649-657.
5Gao W,Tan G,Hong Y,et al.Development of portable single photon ionization time-of-flight mass spectrometer combined with membrane inlet[J].Intemational Journal of Mass Spectrometry,2012.