OPTIC with ColdTrap

best cryotrap with fast heating

Cryogenic cold trapping is frequently used for narrowing the chromatographic band and improving the detection limit. The cryotrap uses LN2 or CO2 for cooling, due to our low thermal mass the cooling is really fast. The GL Sciences ColdTrap has direct heating of the cooling chamber, resulting in very fast heating of the trap.
After trapping the analytes must be released from the cryotrap using a highly accurate and very fast heating ensuring that they are introduced onto the column in a very sharp band. With a fast heating cryo-trap better detection limit and better resolution can been seen on the detector.

Increase in Sensitivity with our cryotrap

With OPTIC-4 and integrated cryotrap analytes are focused at the head of the column by cooling its selected section to sub-ambient temperature. After re-focusing, the analytes are released from the GC cryotrap in a very narrow band using an extreme fast heating rate of 60 °C/second. As a result, very sharp peaks with a high signal to noise ratio are obtained.

leeg cryotraprefocusing with cryotrap leeg cryotrap
  • Can be used on any GC or GCMS
  • Stand alone or integrated in OPTIC-4
  • Operating using direct LN2 or CO2
  • Temperature range:  -150 °C to 350 °C
  • Temperature stabilaty at low temperature:  ±3 °C
  • Heating ramp rate: 1 to 60 °C/sec
  • Cool down time:  2-3 minutes
  • Compatible with any GC
  • Software controlled by Evolution Workstation
  • Software compatible with Chronos Mastersoftware
  • Free software updates

Vinylchloride with headspace better with a gc cryotrap
The figure above shows the importance of the low GC cryo-trap temperature as well as the importance of a fast heating cold trap. Sample is Vinylchloride injected by PAL system with headspace tool.

2406-3003 OPTIC-4SC/LN2 GC Injection System with Cryotrap, LN2 Cooling Direct LN2 Cooling, including Evolution Workstation control software. Requires interface cable for GC and pressurized LN2 vessel (not included).
2406-3004 OPTIC-4SC/CO2 Injection System with Cryotrap, CO2 Cooling Direct CO2 Cooling, including Evolution Workstation control software. Requires interface cable for GC and liquid CO2 bottle (not included).
2406-3026 OPTIC-4SC/LN2 ¼Inch Injection System with Cryotrap, LN2 Cooling Direct LN2 Cooling, including Evolution Workstation control software. Requires interface cable for GC and pressurized LN2 vessel (not included).
2406-3027 OPTIC-4SC/CO2 ¼Inch Injection System with Cryotrap, CO2 Cooling Direct CO2 Cooling, including Evolution Workstation control software. Requires interface cable for GC and liquid CO2 bottle (not included).


Are you looking for a stand alone coldtrap without inlet? Check our CryoFocus unit.