Headspace gas analysis : quantitative trapping and thermal desorption of volatiles using fused-silica open tubular capillary traps
Date
1986
Authors
Burger, B. V.
Munro, Zenda
Journal Title
Journal ISSN
Volume Title
Publisher
Elsevier
Abstract
A system has been devised with which volatiles can be effectively trapped from headspace gas samples at relatively high flow-rates. Material is trapped in fused-silica capillary traps, 1 m in length, and coated with either an immobilized SE-30 layer, or a suitable adsorbent such as activated carbon or a powdered porous organic polymer supported on immobilized SE-30. These fused-silica traps are installed and used in stainless-steel tubes (desorption tubes) through which an electrical current is passed to effect on-line thermal desorption of the trapped volatiles. Thermal conversion of labile compounds such as α-pinene and γ-terpinene can be avoided by temperature-programmed or -controlled desorption in conjunction with cold trapping of the desorbed volatiles on the capillary column. The capacity of different traps was compared for a number of compound types and their versatility demonstrated by carrying out headspace gas determinations on, for instance, wine, urine and an imitation fruit drink. © 1986.
Description
The original publication is available at http://www.sciencedirect.com/science/article/pii/S0021967300947150
Keywords
Gas chromatography, Gases -- Analysis
Citation
Burger, B. V. & Munro, Z. 1986. Headspace gas analysis : quantitative trapping and thermal desorption of volatiles using fused-silica open tubular capillary traps. Journal of Chromatography C, 370:449-464.