UltraFast GC Configuration
For this application, the TRACE GC Ultra is configured
with a SSL injector, an UltraFast option (including the
analytical column), and a Fast Flame Ionisation Detector
(FFID) featuring 6 ms time constant and acquisition
frequencies up to 300 Hz. Such a high speed is, in fact, a
compulsory requirement for the correct acquisition (15-20
points/peak) of the extremely narrow peaks (approx.
100 ms PW1/2h) typical for this type of chromatography.
The assembly allows the instrument to achieve heating
rates up to 1200 °C/min, and fast cooling times occur
rapidly, as well, taking about one minute to return to
50 °C from 350 °C compared to about 4 minutes in
conventional mode.