Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1244713 | Talanta | 2010 | 6 Pages |
Abstract
A new dispersive vapor extraction (DVE) technique for rapid removal of selected volatile organic compounds (VOCs) from gaseous mixtures was investigated. In this technique, less than 1.0Â mL of a volatile solvent was vaporized for 8Â min in a 250-mL flask containing a gaseous mixture. The flask was then cooled under running tap water for 2-3Â min to induce condensation of the vapor and co-extraction of the VOCs from the headspace. The technique was tested over a concentration range of 4-23Â ppb, and resulted in extraction efficiencies ranging from 80 to 97% for the VOCs tested. Because of its simplicity and the relatively short sampling time, DVE could potentially lead to high sample throughput and rapid air analysis.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
E.S. Farrell, G.E. Pacey,