CryoTrap

The JAS CryoTrap allows you to trap (very) volatile components and preconcentrate these components before being injected on a gaschromatographic separation column. This refocussing step results in a narrow band injection and overcomes peakbroadening issues and related separation problems. It will improve integration- and peak identification of the various peaks in the chromatogram.

The JAS CryoTrap is specially designed for installation in an Agilent 7890 or 6890 GC. This system includes the latest economical- and technical design like a low thermal mass, highly effective insulation and extreme fast heating rate. These functional properties will ensure reliable operation at any chosen columnoven temperature. The extreme fast heating of the cold trap (up to 700 °C/min) enables in a fast evaporization of the trapped components and a better chromatographic separation.

Cooling options

The possibility to choose various coolants adds high flexibility to the JAS CryoTrap and garantuees optimal analytical performance:

  • Cooling by means of liquefied N2 (-160 °C)
  • Cooling by means of liquefied CO2 (-60 °C)
  • Cooling by means of dried instrument air (starting from ambient- or initial temperature of the columnoven)

The CryoTrap in detail

The JAS CryoTrap includes a double chamber design, with a Stainless Steel housing. The inner chamber is made of a special material with optimal heat conductivity properties. The double chamber design ensures optimal insulation of the CryoTrap at minimal coolant consumption.

The JAS CryoTrap is installed at the lefthand side of the columnoven wall in an Agilent 7890 or 6890 GC. The (capillary-) analytical column is guided through the JAS CryoTrap and then connected to the inlet. By means of the chosen coolant the inside of the JAS CryoTrap is cooled down to the preset temperature. The part of the capillary column inside the JAS CryoTrap is then cooled down too and acts as a cold trap, where the components are temporary frozen before elution and separation on the analytical column. The extremely fast heating rate allows you to evaporate and transfer the frozen components in a narrow band onto the column. Temperature- and time settings are depending on the application and components of interest. These settings can be controlled and optimized by means of the OpenLab Software.