固相微萃取测定水样中苯胺类化合物  

Determination of aniline by solid-phase microextraction in water

作　　者：冯喜兰[1] 田孟魁[1] 荆瑞俊[1] 马涛[1] 

机构地区：[1]河南科技学院,河南新乡453003

出　　处：《河南科技学院学报（自然科学版）》2011年第5期51-54,共4页Journal of Henan Institute of Science and Technology(Natural Science Edition)

基　　金：河南省教育厅科技攻关项目(2010A150010;2011A150013);河南科技学院大学生创新基金项目(2009CXSY30)

摘　　要：自制碳纳米管涂层萃取探头,顶空固相微萃取测定水样中苯胺类化合物,优化了影响萃取效率的因素:萃取时间和温度、离子强度、搅拌速度等.在0.1～50 mg/L浓度范围内具有良好的线性关系,相关系数在0.995 5～0.998 7之间,方法的检出限为0.074～0.018 mg/L.该方法用于水样品的测定,加标回收率为78%～112%,相对标准偏差小于11.28%.A novel solid-phase microextraction（SPME） fiber was prepared by coating carbon nanotube on a stainless steel wire,and was used for the determination of aniline in water by headspace-solid phase microextraction（HS-SPME） combined gas chromatography（GC）.The HS-SPME was optimized for the most important parameters such as extraction time and temperature,ionic strength and agitation.The method showed good linearity between 0.1 and 50 mg/L with regression coefficients ranging between 0.995 5 and 0.998 7.The detection limits of the developed method for water sample were below 0.074 mg/L for all analytes.This method has been applied to real samples and the recovery values in the range of 78%～112% for different aniline,the relative standard deviations were below 11.28%.

关 键 词：碳纳米管 顶空固相微萃取 苯胺类化合物 

分 类 号：O658.2[理学—分析化学]