Japanese patent 3290968 US patent US 6,190,613B1 Frontier Lab’s proprietary MicroJet system achieves a cryo-trapping temperature of -196ºC at the head of a GC separation column Compatible with a variety of sample introduction devices Universal Design Capillary column monitor and set up B Buttons for set up – mainly for standalone use C Flow control to vary cryo-trap

Background of development Chromatography is dramatically improved using cyrogenic trapping of gases and volatiles compounds at the head of an analytical separation column. Cryo-trapping is used with sample introduction devices that slowly introduce volatile compounds to a GC or GC/MS. These devices include thermal desorption systems, headspace samplers, and purge & trap units. Frontier Laboratories introduced the first MicroJet CryoTrap over ten years ago. This system was designed exclusively for use with Frontier Lab’s Pyrolyzers. With the introduction of the new universal MicroJet Cryo-Trap...

Cryo-trapping at the head of separation column and thermal desorption Anti-icing feature prevents ice build-up from moisture in the air Nitrogen gas is swept through the inside of the MicroJet tube and mixed by integrated baffles, which helps prevent ice build-up on the column. Ice build-up on the separation column may result in split peaks and bleeding in the chromatogram. This anti-icing feature allows consistent rapid thermal desorption of the analytes for improved peak separation. New nitrogen saver mode reduces consumption and allows trap temperature to be controlled. Separation column Section...

Cryo-trapping from a variety of sample introduction devices MJT-1035E Controller Sample introduction device The Universal MicroJet Cryo-Trap works with a variety of sample introduction devices and GC’s from multiple vendors. Sample introduction devices include: • Pyrolyzer (EGA/PY-3030D) • Purge & trap • Head space sampler N2 Gas MicroJet Cryo-trap Fig. 7. MicroJet Cryo-Trap coupled with a sample introduction device on a GC/MS system Specifications MicroJet Cryo-Trap (MJT-1035E)  Lowest cooling temp. Approx. -196ºC (N2: 7 L/min; GC oven temp.: 40ºC) Traps volatile gases such as ethane, propane,...