顶空固相微萃取/气相色谱法快速测定水中氯代苯胺类残留  

Quick Determination of Chlorinated Anilines Residues in Water by Gas Chromatography Coupled with Headspace Solid Phase Microextraction

作　　者：陈烨[1] 王超[1] 许秀艳[1] 刀谞[1] 吕怡兵[1] 

机构地区：[1]中国环境监测总站,北京100012

出　　处：《分析测试学报》2014年第9期1056-1061,共6页Journal of Instrumental Analysis

基　　金：国家高技术研究发展计划(863计划)资助项目(2013AA06A308)

摘　　要：建立了固相微萃取／气相色谱法（SPME／GC）同时测定水中13种氯代苯胺的方法。优化了GC测定条件，研究了纤维头类型、萃取温度、萃取时间、萃取pH值、离子强度和解吸时间对萃取效果的影响。在优化条件下，各目标组分在一定浓度范围内线性关系良好，检出限为0.05～0.34μg／L。用于实际水样分析，加标回收率为76.0％～121％，相对标准偏差为0.3％～17.2％。方法可用于水体中13种氯代苯胺的快速痕量分析。A gas chromatographic method coupled with solid phase microextraction （SPME/GC） was developed for the determination of 13 chlorinated anilines residues in water. The instrumental parameters were optimized. The impact factors of extraction efficiency such as fiber type, extraction temperature, absorption time, pH value, ionic strength and desorption time were also studied. Under the optimized conditions, the calibration curves were linear in certain concentrations. The detection limits were 0.05 -0.34 μg/L. The spiked recoveries of analytes in actual sample ranged from 76.0% to 121% with relative standard deviations of 0.3% - 17.2%. The proposed method is suitable for the quick determination of trace level of 13 chlorinated anilines residues in water.

关 键 词：固相微萃取 快速测定 水 氯代苯胺类 

分 类 号：O657.71[理学—分析化学] O623.732[理学—化学]