Cooling down the Gas Chromatographic column. Cryogenic focusing on the first part of the GC-column.
Cooling down the GC Column (CryoTrap)
Jun 02, 2015
Cold Trap for Gas Chromatography (GC). Why is it usefull to have a cryotrap in your GC oven.
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Cooling down the Gas Chromatographic column.
Cryogenic focusing on the first part of the GC-column.
Cryogenic cold traps focus the sample in a narrow band at the beginning of the column by cooling a short section of the column.
Cryo-focusing is used to narrow the width of a peak, as a result the signal to noise ratio and the detection limit are improved.
A cryogenic trap is designed for rapid cooling and efficient re-heating, ensuring reproducibility and optimum peak shape.
Cold traps are mainly used with the following injection techniques.
- On-Column injections- Enrichment (multiple injections)- Air and Gas Sampling- Purge and Trap- Multidimensional- Head Space Analysis- SPME- ITEX
Trapping temperature and heating rate are very important parameters for a Cryotrap.
The GL Sciences CryoFocus-4 is the only cryogenic trap with fast heating (60°C/sec).
More information on www.glsciences.eu
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