大气颗粒物中有机污染物及自由基的检测  

Determination of Organic Pollutants and Free Radical in Atmospheric Particulates

作　　者：刘文霞[1,2] 肖天存[1,2] 王秀红 王淑仁[1,2] 

机构地区：[1]河南农业大学林学园艺学院 [2]山东大学环境工程系

出　　处：《河南农业大学学报》1998年第4期320-324,334,共6页Journal of Henan Agricultural University

基　　金：山东省自然科学基金

摘　　要：采用毛细管气相色谱—色质联用技术（ＧＣ／ＭＳ），分析了济南地区大气飘尘及降尘中有机污染物的化学组成，共检测出１７０多种有机污染物，包括烃、酸、酞酸酯、醇、醛、酮、酚、酰胺、苯、萘及其衍生物、硝基化合物、联苯及其衍生物、三苯、茚、芘、勿艹、菲、蒽以及苯并芘等多环芳烃化合物。用顺磁共振波谱仪（ＥＳＲ）对大气颗粒物中自由基进行了分析，发现济南市炼油厂、电厂、山东大学飘尘中有腐植酸自由基存在，且腐植酸自由基和水溶液有交换作用，能部分溶解于水溶液而形成一种新的自由基。The chemical composition of particulates and organic pollutants in TSP,precipatation matter of Jinan Area were studied with GC/MS.It's found there are more than 170 organic pollutants in the aerosol:hydrocarbons,acids,phthalates ,alchohols,aldehydes,ketones,phenol,amide,benzene,naphthalene and its derivative,nitro chemical compounds,biphenyl and its derivative,triphenyl,indene,pyrene,flaorene,anthracene,benzo and polycyclic aromatic hydrocarbon(PAH)compounds like pyrene.Free radical of various atmospheric aerosols was detected with Electron Spin Resonance(ESR).It's observed that humic acid free radical exists in TSP over the Refinery Plant,Power plant and Shandong University in Jinan,and that the free radical can exchange with water,dissolve partly in water and form a new free radical.

关 键 词：大气颗粒物 有机污染物 自由基 检测 

分 类 号：X513.02[环境科学与工程—环境工程]