【作者】 聂凡； 刘晓菲； 马宗霞； 卢昕；

【Author】 NIE Fan;LIU Xiao-fei;MA Zong-xia;LU Xin;Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education), College of Chemistry and Pharmacy, Guangxi Normal University;

【机构】 药用资源化学与药物分子工程教育部重点实验室,广西师范大学化学与药学学院；

【摘要】 通过硫醇-烯点击化学在双键包裹的磁性纳米粒子表面修饰巯基化石墨烯,制备得到磁性石墨烯复合材料Fe3O4@G萃取富集-HPLC-FLD测定环境水样中的四种多环芳烃:蒽(An T),芘(Pyr),苯并蒽(Ba A)和苯并芘(Ba P)。考察了影响萃取效率和色谱分离的各种实验因素。在优化的条件下,四物质的检测限分别为0.04、0.5、0.3、0.2 ng/L,平均加标回收率在83.2~103.0%范围内,相对平均标准偏差(RSD)为2.3%~5.2%。该方法成功应用于环境水样中多环芳烃的测定。更多还原

【Abstract】 Fe3O4@graphene(Fe3O4@G NPs) have been successfully synthesized by thiol-ene click chemistry. As an effective adsorbent, Fe3O4@G NPs were applied for the extraction of polycyclic aromatic hydrocarbons in environmental water samples prior to HPLC-FLD. Various experimental parameters that affect the extraction and separation efficiencies were investigated and optimized. Under the optimum conditions, the limits of detection(LOD, S/N = 3) were in the range of 0.04-0.5ng/L for the four polycyclic aromatic hydrocarbons, and the recoveries were in the range of 83.2 to 103.0% with relative standard deviations ranging from 2.3 to 5.2%. The present method has been successfully applied for the determination aromatic amines in Lijiang River water samples.更多还原