Zebron GC columns

Phenomenex

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.

Zebron GC Column

  • Low Bleed
  • High Temperature Stability
  • Long Column Lifetimes

Column Bleed

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.

What sets Zebron’s bleed apart from others?

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.

Challenges faced when using Traditional GC Columns

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:

  • Become inflexible and brittle
  • Break easily and are costly to replace
  • Require more system downtime to replace columns
  • Can’t separate high molecular weight compounds

In addition, traditional metal columns have higher temperature limits than capillary columns. Metal columns are:

  • Inflexible and hard to use
  • Require special tubing cutters for installation
  • Prone to leaks from expansion and contraction
  • Have active surface, giving poor peak shapes for acids and bases
  • Incompatible with MS detectors

 

How is the Zebron™ Inferno™ line is better?

  1. Advanced ESC™ Bonding Technology At high temperature ranges, the stability of standard GC columns will deteriorate, resulting in increased bleed. Zebron’s Engineered Self Cross-linking™ (ESC) bonding technology reinforces the stationary phase for enhanced column durability and extremely low bleed levels. The result is that the Zebron™ Inferno™ columns allow for the flexibility to perform GC analysis at high temperatures while providing low bleed and longer column lifetime.
  2. Special High Temperature Polyimide Coating Standard polyimide resin pyrolyzes at temperatures above 360 °C, making the tubing unstable. The Zebron Inferno columns utilize a special dark polyimide resin that shows minimal thermal degradation even at temperatures up to 430 °C.* This results in longer column lifetime at elevated temperatures.

 

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