TheDesorber’sheatedblockmust be
heavily insulated toallow the tempera-
ture to reach275C. The insulation
( spunborosilicateglassblanket ) is
formedover theheatedblock area to
formahot pocket whichalso keeps
the tubing leading from the valve to the
columnovenhot.
If the connecting tubing isnot hot
enough, thehighboilingmoleculeswill
condenseandmaynot reach the col-
umn.
.
Thermal Soil Desorber Instructions
September 2006
ThermalDesorberInstructions.pub
The stainless steel tubing is covered
in copper toprovidebetter thermal
stabilityandheat transfer.
page4
