固相微萃取气相色谱法测定水样中的苯胺、吡啶  

Solid phase microextraction and GC for simultaneous measurement of aniline and pyridine in water

作　　者：钟明[1] 孙成[1] 李想[1] 

机构地区：[1]南京大学环境学院污染控制与资源化研究国家重点实验室,江苏南京210093

出　　处：《环境污染与防治》2006年第3期233-235,共3页Environmental Pollution & Control

基　　金：国家"863"计划"太湖水源地水质改善技术"资助项目(No.2002AA601011);江苏省环保科技发展计划"长江江苏段环境有毒污染物来源探查及控制技术研究"资助项目

摘　　要：应用PDMS／DVB固相微萃取探头，结合GC／FID测定水中的苯胺、吡啶。优化了萃取温度、萃取平衡时间、pH等条件。该方法对苯胺和吡啶的检测限分别为0．050、0．065mg／L，相对标准偏差6．44％～8．67％，具有快速、准确和方便等优点。Solid-phase microextraction （SPME） using a PDMS/DVB fiber and the subsequent gas chromatography using a flame ionization deteetor （GC-FID） were employed for simultaneous measurement of aniline and pyridine in water samples. The extraction performed at 15 ℃ for 30 minutes at a pH of 7.0 would result in the largest GC signal. The detection limit ranged from 0. 050 to 0. 065 mg/l., and the relative .standard deviation was 6.44%～8.67%. The SPME-GC method is simple, fast, precise, sample effieient and solvent-free.

关 键 词：固相微萃取 气相色谱 苯胺 吡啶 

分 类 号：X832[环境科学与工程—环境工程]