气溶胶PM_(2.5)中内分泌干扰物酞酸酯类的研究

Study on Endocrine Disrupting Chemicals Like Phthalate Esters on Aerosol PM_(2.5)

通过选择17种酞酸脂的目标化合物的特征离子对PM2.5样品进行特征离子的扫描,有效建立了高灵敏度的PM2.5酞酸脂类(PAE)的GC-MS-SIM的测定方法;检出限均达到了ng级的水平。气溶胶PM2.5中酞酸脂类(PAE)的污染特征:清洁对照点以邻苯二甲酸二丁酯(DBP)为主;二类区以邻苯二甲酸二(2-乙基己基)酯(DEHP)和邻苯二甲酸二丁酯(DBP)占主导成分。

The determining method of phthalate esters on PM（2.5） by GC/MS/SIM with high sensitivity is set up in this study in which the characteristic ions of 17 kinds of target chemicals of phthalate esters on PM（2.5） were scanned.All detection limits reach ng level.The pollution characteristic of phthalate esters on PM（2.5） was that in the clean air site DBP is the main element and in the secondary area DEHP and DBP are the basis.