TSEShortcomings
Vortex cooler requiresmin. 80 psig air pressure
Insufficient cooling=Analyte breakthrough
MonitorTSETrapTemp&Alarm
Undesirable impurities cryotrapped aswell
Carrier gas impurities, Columnbleed, etc.
Jan30/07 - RAE
DowChemicalCanada Inc.
25
Requires short lengthof column after TSE trap
• Ineffective if impurity is same as analyte (e.g.Water in carrier gas)
Cannot trap extremely light analytes (yet)
O
2
,N
2
, CH
4
, H
2
,Ar…
Generates peaks 0.5-1.0 secwide
Best for enhancingpeaks >2 secwide
Potential to overloadTSE trap exists
