| Title: | [Passive personal sampler for exposure to low concentration of volatile organic compounds] |
| Address: | "Institute of Environment Health Monitoring, Chinese Academy of Preventive Medicine, Beijing 100021" |
| ISSN/ISBN: | 1000-8020 (Print) 1000-8020 (Linking) |
| Abstract: | "A passive personal sampler has been developed for monitoring volatile organic compounds(VOCs) in ambient air and nonoccupational exposure. The sampler collecting target VOCs is based upon the mechanism of molecular diffusion and absorption onto a single layer of active carbon fibre (ACF) absorbent. After exposure, the ACF is transferred from the sampler into stainless steel tubes for thermal desorption. The desorbed target VOCs is analyzed by capillary GC. Under the condition of facing velocity of 10-260 cm/s, relative humidity of 30%-80%, and temperature of 10-30 C, the sampling rate for benzene, toluene, tetrachloroethylene, p-xylene and styrene is 25.74, 25.16, 25.85, 8.16 and 6.47 ml/min respectively. The analysis on the new passive sampler demonstrated that its relative overall uncertainty for target VOCs was in the range of +/- 25% compared with the active ACF tube sampling method" |
| Keywords: | "Air Pollutants/*analysis Benzene/analysis Environmental Exposure Humans Occupational Exposure Oils, Volatile/*analysis Organic Chemicals/*analysis Tetrachloroethylene/analysis Toluene/analysis;" |
| Notes: | "MedlineXu, D Cui, J Wang, B chi English Abstract Research Support, Non-U.S. Gov't China 2002/04/10 Wei Sheng Yan Jiu. 1999 Jul; 28(4):246-8" |
