Zebron GC columns are engineered by expert Phenomenex GC scientists that created key J&W technologies. We provide best-in-class technologies and support to make your analysis easier – let the Zebron experience put you first.
Column bleed is the loss of stationary phase as a result of impurities in the starting polymer or the decomposition of the phase at elevated temperatures. When using sensitive GC detectors such as MS, bleed can impact method detection limits (MDLs) causing difficulties at the low calibration ranges.
Traditionally, GC/MS bleed certification had been achieved by incorporating a column’s phenyl character into the polymer backbone. These “Arylene phases” provided similar selectivity to standard phases, but added the stability necessary to reduce bleed.
Zebron’s proprietary Engineered Self Cross-linking™ (ESC) bonding technology and special polyimide tubing provides enhanced column durability for extremely low bleed levels. Phenomenex has applied its proprietary Engineered Self Cross-linking™ (ESC) bonding to an Arylene polymer chemistry and created the new Arylene Matrix Technology™. The resulting columns have long lifetime, enhanced selectivity and lower bleed than traditional Arylene products.
Most fused silica columns in the market are not developed to handle prolong exposure to temperatures above 360 °C. At high temperatures, these traditional fused silica GC columns:
In addition, traditional metal columns have higher temperature limits than capillary columns. Metal columns are: