正压罐采样-预浓缩-GC/MS法测定空气中痕量卤代烃
Determination of Trace Halogenated Hydrocarbons in Air by Canister Collecting-Preconcentration-GC/MS
由希华 1张凤菊 1李琳 1曹方方 1李红莉1
作者信息
- 1. 山东省生态环境监测中心,山东 济南 250101
- 折叠
摘要
采用正压罐采样-预浓缩-GC/MS法同时测定空气中16种卤代烃,通过优化试验条件,使16种痕量卤代烃在30 min内实现分离,目标物分别在40 pmol/mol～200 pmol/mol和5 pmol/mol～100 pmol/mol范围内线性良好,方法检出限为4 pmol/mol～55 pmol/mol.标准气体6次测定结果的RSD为1.0％～7.2％,空白样品加标回收率为72.5％～125％.
Abstract
16 halogenated hydrocarbons in air were simultaneously determined by canister collecting-precon-centration-GC/MS.By optimizing the test conditions,16 trace halogenated hydrocarbons were separated within 30 min.The target objects had good linearity in the range of 40 pmol/mol to 200 pmol/mol and 5 pmol/mol to 100 pmol/mol.The method detection limits were from 4 pmol/mol to 55 pmol/mol.The RSDs of 6 measure-ments of standard gas ranged from 1.0％to 7.2％.The recoveries of blank samples were from 72.5％to 125％.
关键词
卤代烃/预浓缩/气质联用法/环境空气Key words
Halogenated hydrocarbon/Preconcentration/GC-MS/Ambient air引用本文复制引用
基金项目
山东省自然科学基金资助项目(ZR2020ZD21)
出版年
2024
NETL
NSTL
维普
万方数据