Thermal desorption efficiencies for different adsorbate/adsorbent systems typically used in air monitoring programmes.

Cao, Xu-Liang and Hewitt, CN (1993) Thermal desorption efficiencies for different adsorbate/adsorbent systems typically used in air monitoring programmes. Chemosphere, 27 (5). pp. 695-705.

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Abstract

Thermal desorption efficiencies at different temperatures have been determined for selected C5-C10 hydrocarbons (isoprene, benzene, toluene, p-xylene, o-xylene, mesitylene, 1,2,4-trimethylbenzene, 1,2,3-trimethylbenzene, α-pinene, and β-pinene) on four adsorbents (Tenax-TA, Tenax-GR, Carbotrap, and Chromosorb 106) using a very simple vapour phase spiking/double desorption method. This two-stage desorption method does not require an accurate amount of analyte to be added to the adsorbent. It is found that α-and β-pinene can be partly or completely decomposed on some adsorbents. A method for estimating the thermal desorption conditions giving complete desorption from data on retention volumes at different temperatures for the adsorbate/adsorbent system is also discussed.

Item Type:
Journal Article
Journal or Publication Title:
Chemosphere
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/2300/2304
Subjects:
?? environmental chemistrygeneral chemistrychemistry(all)ge environmental sciences ??
ID Code:
22589
Deposited By:
Deposited On:
23 Jan 2009 10:24
Refereed?:
Yes
Published?:
Published
Last Modified:
16 Jul 2024 08:24