lThermoelectric (Peltier)
Chiller (typical of portables & reference method testing)
lMinimum contact surface
area
l
lPermeation Dryer
lPerma Pure - Nafion® hose
(sulfonic acid impregnation)
–H2O has affinity to sulfonic acid - “dry” air counter
flow diff. grad.
–
lIce bath
lShould utilize minimum
contact surface area. Not always the case.
l
lAll must remove condensate continuously from sample stream (typ. peristaltic “hose “ pump).