A purge and trap system is a method used to concentrate and prepare volatile organic compounds for analysis in a gas chromatograph (GC). Purge and trap systems are used in the environmental sciences to prepare soil and water samples for detection of contaminants. An inert gas is run through the sample to purge the contaminants from the soil or water, and they are then adsorbed onto a trap, which is quickly heated to desorb the particles so that they are ready to enter the GC.
Considerations for purchasing a purge and trap system
Some specifications that differ between purge and trap systems are: the number of samples that can be accommodated in one run; the size of the sample; whether the purge and trap system can prepare water, soil, or both; how quickly the system prepares the samples; whether the purge and trap system has a chilling feature; and if the gas pressure or flow can be changed during the purge and trap.
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Companies that sell Purge and Trap System
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