MicroJet Cryo-Trap (MJT-2030E, MJT-1035E)


On sale

A cryo-focusing device that traps low-boiling-point compounds by liquid N2 cooling in GC oven.

With this device installed, about 3-7 L/min of nitrogen gas flows through a heat exchange coil immersed in liquid nitrogen to liquefy it. It is sprayed as a jet stream on the head of a separation column in GC oven. The targeted compounds are trapped there. Then the solenoid valve is closed to stop the jet flow instantaneously. At the same time, through the circulating air in the GC oven, the trap is heated at approx. 800 ºC/min which initiated volatilization and the separation analysis of trapped compounds.

* There is also a stand-alone model (MJT-1035E) available for use with pre-processing equipment from third-party manufacturers, in addition to pyrolyzer.

  • Features

  • Specifications

  • High trapping efficiency of low-boiling-point compounds
  • Rapid cooling with low energy consumption
  • Controllable cooling temperature

【Mechanism】 * Move to Vimeo site by clicking the following link.
・ Operating mechanism of MicroJet Cryo-Trap (Video

Lowest achievable temperature:
Approx. -196 ºC (nitrogen gas flow rate approx. 7 L/min, GC oven temperature 40 ºC)

Separation column requirements:
Metal capillary separation column (inner diameter 0.25 mm or less)
Fused silica capillary separation column (inner diameter 0.53 mm or less)

160 (W) x 322 (W) x 100 (H) mm

Required power:
100 - 240 VAC, 40VA

*May not be installable, if another device is on the top of your GC oven.
*Please see the catalog for the specifications of the standalone model (MJT-1035E).