Zoex Corporation ZX2



ZX2 Cooled Loop Modulation GC x GC System Eliminates the need for liquid nitrogen for thermal modulation. The ZX2 employs a closed cycle refrigerator/heat exchanger to produce -90° cold jet. The ZX2 modulates volatile and semi volatile compounds over the C7+ range. True “set it and forget it” operation for long periods of time, suitable for busy service analysis situations.


  • 2 stage loop modulator 
  • Closed cycle cooling assembly for cold jet. Eliminates LN2 
  • Modulation rated for C7+ 
  • Installs on Agilent 7890GC, 6890GC, 5975QMS, Shimadzu GC-2010 & GCMS-QP2010Plus, Thermo Trace GC 
  • Secondary oven installed as an option. Can run both columns under same temperature program 
  • Secondary oven can lead or lag the main oven up to 40°C 
  • No moving parts 
  • Modulation cycle range from 1000ms – 32000ms 
  • No liquid cryogen needed for cold jet 
  • Easy to handle and manage without cryogenic liquids 
  • Easy to install; most users can manage own installation within 2 hours 
  • Can be uninstalled and allow GC to be used for other methods. Not necessary to have dedicated GC 
  • More robust than the Quad Jet 
  • Better hot and cold jet gas consumption than Quad 
  • True “set and forget” operation; no more LN2 logistics 


ZX2 Cooled Loop Modulation

ZX2 Cooled Loop Modulation

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Zoex Corporation, based in Houston, Texas, USA has driven the commercial development of GC x GC (Comprehensive Two-dimensional Gas Chromatography) from...

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