首页 | 本学科首页   官方微博 | 高级检索  
     检索      

Needle trap-顶空进样-气相色谱法分析地下水中的苯系物
引用本文:高松,张兰英,王琳,宋杰,崔哲,吕春欣,刘鹏,邓银舟.Needle trap-顶空进样-气相色谱法分析地下水中的苯系物[J].岩矿测试,2010,29(5):508-512.
作者姓名:高松  张兰英  王琳  宋杰  崔哲  吕春欣  刘鹏  邓银舟
作者单位:1. 吉林大学环境与资源学院水资源与水环境重点实验室,吉林,长春,130026
2. 大唐长春第三热电厂,吉林,长春,130103
3. 深圳出入境检验检疫局,广东,深圳,518045
基金项目:国家自然基金项目资助,青年科学基金项目资助,国土资源地质大调查--地下水污染测试技术研究项目资助 
摘    要:利用Needle trap集现场采样、无溶剂提取和热解吸进样等多功能为一体的特点,针对密闭的20mL顶空样品瓶(10mL样品),通过优化提取温度、样品平衡时间、注射器推杆循环抽拉体积、加盐量及现场采样保存时间等条件,确定了Needletrap吸附提取地下水中7种苯系物的最佳条件,用顶空进样气相色谱法测定,方法加标回收率为84.27%~115.03%,检出限为0.06~0.09μg/L,精密度(RSD,n=7)<7%,符合EPA相关标准。建立的方法表明Needle trap适用于地下水中苯系物的提取分析。

关 键 词:动态针捕集  顶空进样  气相色谱法  苯系物  地下水
收稿时间:2010/1/18 0:00:00
修稿时间:2010/5/26 0:00:00

Analysis of Benzene Series in Groundwater by Gas Chromatography with Needle trap-Headspace Sampling
GAO Song,ZHANG Lan-ying,WANG Lin,SONG Jie,CUI Zhe,L Chun-xin,LIU Peng,DENG Yin-zhou.Analysis of Benzene Series in Groundwater by Gas Chromatography with Needle trap-Headspace Sampling[J].Rock and Mineral Analysis,2010,29(5):508-512.
Authors:GAO Song  ZHANG Lan-ying  WANG Lin  SONG Jie  CUI Zhe  L Chun-xin  LIU Peng  DENG Yin-zhou
Institution:GAO Song,ZHANG Lan-ying,WANG Lin,SONG Jie,CUI Zhe,L(U) Chun-xin,LIU Peng,DENG Yin-zhou
Abstract:A method for the determination of 7 benzene series in groundwater samples by gas chromatography with Needle trap-headspace sampling was developed,which represents the integrated features of on-site sampling,solvent-free extracting and thermal desorption.The experiment conditions such as extraction temperature,sampleequilibration time,pump volume of syringe plunger,additive amount of salt and sample storage time were tested and optimized.The detection limits of the method for 7 benzene series were 0.06 ~0.09 μg/L and the recoveries were 84.27% ~115.03% with precision of lower than 7% RSD(n =7),which is consistent with relevant criteria of US EPA.The method is suitable for the determination of these benzene series in groundwater samples.
Keywords:Needle trap  headspace sampling  gas chromatography  benzene series  groundwater
本文献已被 CNKI 万方数据 等数据库收录!
点击此处可从《岩矿测试》浏览原始摘要信息
点击此处可从《岩矿测试》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号