SAMPLING AND ANALYSIS OF ISOPRENE IN AMBIENT AIR

被引：0

作者：

VANEIJK, J ^{[1
]}

KOTZIAS, D ^{[1
]}

机构：

[1] COMMISS EUROPEAN COMMUNITIES,JOINT RES CTR,I-21020 ISPRA,ITALY

来源：

FRESENIUS ENVIRONMENTAL BULLETIN | 1994年 / 3卷 / 04期

关键词：

ISOPRENE; OZONE; SAMPLING; ADSORPTION;

D O I：

暂无

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Tenax TA, Tenax GR (graphitised Tenax), Carbotrap B and Carbosieve S were tested as adsorbing materials for the analysis of 2-methyl-1.3-butadiene (isoprene) in air samples. Carbotrap B was found to be the most suitable adsorbing material showing high adsorption efficiency (breakthrough volume > 1 litre) while breakthrough volumes for Tenax TA and Tenax GR were 20 ml and 250 ml, respectively. Carbosieve S produces high background and is extremely sensitive to water vapour. Even at very low concentrations of isoprene (0.1-0.5 ng/tube), ozone at levels up to 240 ppbv did not cause any negative effects i.e. degradation of the adsorbed isoprene.

引用

页码：220 / 225

页数：6