河北工业科技2017，Vol.34Issue(3)：208-213,6.DOI:10.7535/hbgykj.2017yx03010
顶空-气相色谱法与吹扫捕集-气质联用法测定水中乙醛、丙烯醛、丙烯腈、吡啶的方法比较
Comparison of headspace-GC with purge and trap-GC/MS methods in determination of acetaldehyde, acrolein,acrylonitrile and pyridine
摘要
Abstract
In order to further improve the efficiency and accuracy of determination of acetaldehyde,acrolein,acrylonitrile,pyridine in water.The detection limit,precision and recovery of acetaldehyde,acrolein,acrylonitrile and pyridine in water by gas chromatography with purge and trap GC/MS methods are compared.The precision of headspace-gas chromatography is between 1.4％ ～ 3.8％,and the recovery rate is between 93.2％ ～ 101.0％.The precision of purge and trap-GC/MS is between 1.7％ ～3.2％,and the recovery rate is between 92.3％～99.8％.The linearity of the two methods is good,and the purge & trap-GC/MS method has a lower detection limit.The result shows that the two methods can accurately determine acetaldehyde,acrolein,acrylonitrile and pyridine in water.The sensitivity of purge and trap-GC/MS method is higher,suitable for the determination of low concentration samples;the headspace-gas chromatography is suitable for the monitoring of high concentration or dirty samples.关键词
水体环境学/乙醛/丙烯醛/丙烯腈/吡啶/顶空-气相色谱法/吹扫捕集-气质联用法Key words
water environment science/acetaldehyde/acrolein/acrylonitrile/pyridine/headspace-GC/purge and trap-GC/MS分类
资源环境引用本文复制引用
罗毅,姜建彪,常青..顶空-气相色谱法与吹扫捕集-气质联用法测定水中乙醛、丙烯醛、丙烯腈、吡啶的方法比较[J].河北工业科技,2017,34(3):208-213,6.基金项目
河北省科技计划重点项目(15273604D) （15273604D）
