12,000

We have over 12,000 students, from over 100 countries, within one of the safest campuses in the UK

93%

93% of Lancaster students go into work or further study within six months of graduating

Home > Research > Publications & Outputs > Thermal desorption efficiencies for different a...
View graph of relations

« Back

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

Research output: Contribution to journalJournal article

Published

Journal publication date1993
JournalChemosphere
Journal number5
Volume27
Number of pages11
Pages695-705
Original languageEnglish

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.