These unions are used for fitting a pre-column (guard column) and for GC x GC connections.

• Specifically designed for connecting capillary columns
• Easy way of connecting guard columns or retention gaps to capillary columns
• Can be used for repairing broken columns
• Inert and precise glass lined bore
• Supplied with 15% Graphite, 85% Vespel® ferrules

Your chromatography analysis does not end with the selection of the GC column. The combination of components selected for your instrument also make an important contribution to successful separations. SGE brings technology and chromatography expertise to improve your chromatography. SGE manufactures an array of connection types for GC use. Poorly defined or selected connections can lead to an increase in dead volume, leaks from cycled temperatures and mismatched tubing sizes. SGE mini-Unions are specifically designed and precision engineered for use in capillary GC.