About Purge and Trap:
Volatile organic compounds are purged from water samples by an inert gas, then moved to a head space phase, captured and concentrated in a trap tube. After that, the components desorbed by rapidly heating the trap tube are introduced into an analysis column. Components can be efficiently recovered because they are forced into a headspace vapor phase by purging. Therefore, unlike static headspace sampling and SPME methods that cause their gas-liquid equilibrium changing by concentration of salt in the sample, dispersion of data due to matrix effects is less likely to occur, and a salting out operation is not required. The Purge and Trap method offers significant operational advantage.

PT7000 & AS7100:

High resolution separation
Ultra high sensitivity
Compact design
Overlapping parallel processing reduces analysis time
Autosampler with various functions
 – Built-in thermoelectric cooling Function
 – Automatic Addition of Internal Standard
 – Vial tray safe loading mechanism
 – Two types of vials may be used
 – Condensation discharging mechanism
 – Automatic analysis function of a water blank

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