Sharper peaks, better separations

ZX1 Thermal Modulator

ZX1 Thermal Modulator

ZX1 – LN2 Cooled Loop Modulation GC x GC System


  • 2 stage loop modulator
  • Liquid N2 cooling bath (optional 5, 10 or 20 liters)
  • Modulation rated for C3+
  • Installs on Agilent 8890 GC, 7890GC, 6890GC, 5973QMS, Shimadzu GC-2010 & GCMS-QP2010Plus, Thermo Trace GC
  • Secondary oven installed as an option
  • Secondary oven can lead or lag the main oven up to 40°C
  • No moving parts
  • Modulation cycle range from 1000ms – 32000ms


  • 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
  • Sharpest known modulation gives sharpest secondary peaks, hence highest possible secondary peak capacity.
  • Higher sensitivity than non-thermal modulators due to peak focusing
  • Compatible with MS at ordinary flow rates, unlike non-thermal modulators