http://quadrexcorp.com - Every Quadrex fused silica capillary column is pre-conditioned, QC tested, and shipped with a clear and easy to read Capillary Column Test Data Sheet. This gives you all of the pertinent information regarding the columns' configuration, test operating conditions, and maximum programmed and isothermal operating temperature limits. Each stationary phase used in our coating processes is synthesized and cleaned in-house to insure column to column reproducibility. All Quadrex phases are bonded to the silica substrate and cross-linked. Get a GC Capillary Column from Quadrex Corp today.