现代科学仪器Issue(5)：59-62,4.
高灵敏度膜进样VOCs在线检测质谱仪的研制
Development of High Sensitivity Membrane Introduction Mass Spectrometer for on-line Detecting VOCs
谭国斌 1高伟 1洪义 1黄正旭 1李梅 1董俊国 1程平 1傅忠 1周振2
作者信息
- 1. 上海大学环境污染与健康研究所,上海200444
- 2. 广州禾信分析仪器有限公司,广州510530
- 折叠
摘要
Abstract
A new developed high sensitivity membrane introduction mass spectrometer is introduced.A sheet of polydimethylsiloxane（PDMS） membrane is used as sampling interface,coupling combined with single-photon-ionization orthogonal acceleration time-of-flight mass spectrometer.the mass accuracy and resolution are better than 1×10-4 and 600,respectively.The response times for benzene,xylene and chlorobenzene are all shorter than 20s,and the limits of detection for them are 6ppb,17ppb,24ppb,respectively.Linear detection range of this instrument can be reached 3 orders of magnitude,and very suitable for qualitative and quantitative analysis.The results indicate that it has a great application potential for fast and on-line analyzing VOCs in environment.关键词
高灵敏度/膜进样/单光子电离源飞行时间质谱仪/VOCs/在线检测Key words
High sensitivity/Membrane introduction/Single-photon-ionization time-of-flight mass spectrometer/VOCs/on-line detection分类
资源环境引用本文复制引用
谭国斌,高伟,洪义,黄正旭,李梅,董俊国,程平,傅忠,周振..高灵敏度膜进样VOCs在线检测质谱仪的研制[J].现代科学仪器,2011,(5):59-62,4.
