| Sorbent |
Desorption
technique |
Compounds
sampled |
Starting
at bpb
[°C] |
Main Advantages and
Disadvantages |
| Tenax TA |
thermal |
-most non polar VOCs
-slightly polar VOCs
-aldehydes>C5
-(acids>C3)a |
> 60 |
-low background
-well investigated
-some decomposition
products
(benzaldehyde,
acetophenone) |
| Carbotrap |
thermal |
-most non polar
VOCs
-slightly polar VOCs |
> 60 |
-low background
-reactions of some
compounds
(i.e. aldehydes,
terpenes) |
| Activated carbon |
solvent/
thermal |
-most non polar
VOCs
-slightly polar VOCs |
> 50 |
-high capacity
-reactions of some
compounds |
| Porapak Q |
thermal |
-most non polar
VOCs
-slightly polar VOCs |
> 60 |
-high background
-low thermal stability |
| Porapak S or R,N |
thermal |
-VOCs incl.
moderately polar
terpenes |
> 40 |
-high background
-low thermal stability |
Organic molecular sieves
(e.g., Carboxen 563,564,Carbosieve-S-III) |
thermal |
-polar and non polar VOCs |
> −80 |
-water absorption |
