Gas Chromatograph Mass Spectrometer with Purge and Trap

    Equipment/facility: Equipment

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    Description

    GCMS P&T is routinely applied in the environmental area for the analysis of VOCs in soil and water. During operation, a measured amount of sample is placed in a sealed vessel. The sample is purged with inert gas, causing VOCs to be swept out of the sample. The VOCs are retained in an analytical trap, which allows the purge gas to pass through to vent. The VOCs are then desorbed by heating the trap up to 200C, injected into the GC by backflushing the trap with carrier gas, and separated and detected by normal GC operation. Model: Gas Chromatograph Mass Spectrometer with Purge and Trap Scion GCMS 456 and Teledyne Tekmar Atmox

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