| The remaining land has been further treated by solidification, bio-remediation and indirect thermal desorption. |
| Additional work has been carried out on mass changes between atmosphere and vacuum due to physisorption and desorption. |
| The desorption efficiency is determined by injecting a known amount of sample onto the sorbent, desorbing it and analysing the amount recovered. |
| The land was then treated by a variety of methods, including solidification, bioremediation and indirect thermal desorption. |
| Sampling on porous material, desorption by carbon sulphide and quantification by gas phase chromatography. |
| For good performance, the sorbent must be replaced or regenerated before it approaches the desorption process. |
