引用本文:李文超,何欢,杨绍贵,孙成.自制固相微萃取涂层用于自来水中五氯酚的测定[J].环境监控与预警,2013,5(2):20-27
.Analysis of Pentachlorophenol in Tap water by using home-made solid phase microextraction coating[J].Environmental Monitoring and Forewarning,2013,5(2):20-27
【打印本页】   【下载PDF全文】   查看/发表评论  【EndNote】   【RefMan】   【BibTex】
←前一篇|后一篇→ 过刊浏览    高级检索
本文已被:浏览 2289次   下载 1409 本文二维码信息
码上扫一扫!
分享到: 微信 更多
自制固相微萃取涂层用于自来水中五氯酚的测定
李文超,何欢,杨绍贵,孙成
污染控制与资源化研究国家重点实验室,南京大学环境学院,江苏 南京 210046
摘要:
采用石英毛细管作为模具,使甲基丙烯酸和乙二醇二甲基丙烯酸酯在石英纤维表面原位聚合得到聚(甲基丙烯酸-乙二醇二甲基丙烯酸酯)作为固相微萃取涂层,并以五氯酚为研究对象,采用顶空SPME-GC-ECD法对该涂层的萃取性能进行评价。使用正交试验优化萃取温度、萃取时间、盐浓度、pH和搅拌速度。在最优条件下,建立了水样中五氯酚的分析方法,方法检出限为1 ng/L,线性范围为2~5000 ng/L,线性相关系数为0.999 9,相对标准偏差(RSD, n=5)为8.9 %,加标回收率为110.8 %。
关键词:  固相微萃取  五氯酚  涂层
DOI:
分类号:
基金项目:江苏省环境监测科研基金项目(1011,1115)
Analysis of Pentachlorophenol in Tap water by using home-made solid phase microextraction coating
Abstract:
A novel and simple method for preparation of a novel SPME fiber was proposed by copolymerization of methacrylic acid (MAA) and ethylene glycol dimethacrylate (EGDMA) by using glass capillary as “mold”. Pentachlorophenol as target analyte was used to evaluate the extraction performance of home-made coating. Experimental headspace-SPME (HS-SPME) parameters were investigated and optimized by orthogonal array experimental designs. The analytical method for determination of pentachlorophenol was established in tap water sample under the optimum conditions with the method detection limit 1 ng L-1linear range 2-5000 ng L-1, correlation coefficients 0.9999, relative standard deviation 8.9% (RSD, n=5)and the recoveries of spiked tap water sample 110.8%.
Key words:  solid phase microextraction  pentachlorophenol  coating