SIS GC Cryo-Traps

Adds Cryo-Cooling Capabilities to your GC.
Programmable cryo-cooling and heating trap for the cryo-focusing of volatiles and semi-volatiles at the head of GC capillary columns.

GC Cryo-Trap

Electronics Controller Model 951 (CO2 coolant) or Model 961 (LN2 coolant)

Theory/Applications

• Theory of Operation - Description
• Applications Overview [D23]
• Application Note # 19 - Design and Application of the SIS GC Cryo-Trap
• Application Note # 24 - Selection of GC Guard Columns for Use with the GC Cryo-Trap

Features

• Reduction of C02 or LN2 use by 90% as compared to cooling the entire oven.
• Improve Chromatographic resolution of early eluting peaks
• Dual programmable cryo-cooling and heating cycles
• Trap compounds in the GC oven at the head of the GC column.
• Remote input connector for cryo-cooling to heating cycle switching via GC, Desorption system or manually.
• Rapid heating.
• Remote start output signal for starting GC, MS or recorder.

Applications

• Thermal Desorption Sample Trapping
• Purge and Trap Systems
• GC Headspace Sample Analysis
• Multi-dimensional GC applications
• Improve Chromatographic Resolution of Early Eluting Peaks

Three Sizes Available

• 4-inch cryo-trap - 4" long. For high flow applications (10 to 50 ml//min). Variety of Custom I.D.’s Available.
• 1-inch ("micro") cryo-trap - Only 1" long. Best for Microbore GC Capillary Columns. Easily installs inside GC Oven without interfering with column connectors. Uses smallest volume of cooling gases. TD-4 version also available.
• 2-inch cryo-trap for the AutoDesorb - 2" long for SIS AutoDesorb systems.

This product is also covered in Catalog pages D23-D24.

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