Abstract: Study on Fractionation and Identification of Organic Compounds on Particulate in AirChen Baosheng;Qin Yun;Li Maozhong(Institute of Environmental Health and Engineering Chinese Academy ofPreventive Medicine,Beijing 100050,China)Received 1994-07-20Abstract:The paper studied the GC/MS method for qualitative and quantitative identificationof organic compounds on particulate in air,the extraction and tractionation of samples indetail. The quantitative results of 26 compounds on inhalable particulate and bioassay result of extraction and fractionation samples have been given.Keywords:organic compounds on particulate,extraction and fractionation,GC/MS.