User`s guide

Operation
141
Specifies the length of time, during which the trap is held at its
high temperature for trap desorption. You can enter any value
from 0.0 to 999.0 minutes. Typically, a value of 1 minute is
adequate. See the following figure.
Desorb Flow Time - Specifies the time that the pressure will be
held at the lower level during trap desorb in the Pressure Pulse
Injection Mode.
See the Pressure Pulse Injection Mode section later in this
chapter.
Figure 37 Trap Timing Popup
GC Cycle Time—The Cycle Time is the time from the start of
one ATD/TD injection (trap), to the next ATD/TD injection.
The Cycle Time value must be greater than or equal to the GC
run time plus the GC oven equilibration time and the GC oven
cool-down time. (Time from the GC Ready to Ready)
NOTE: The GC Cycle Time enables the system to initiate
desorption of the next tube while the current sample is