Product Information
Phase Detail
Zebron Z-Guard™ GC Columns
Zebron ZB-Guard extends GC column lifetime by protecting against contaminants
Zebron Z-Guard™ GC Columns
Protect and Extend Column Lifetime

  • Individually QC tested to ensure the highest level of quality
  • Extend column lifetime by preventing stationary phase damage
  • Improve separation and peak shapes (especially early elutors)
  • Improve sensitivity and accuracy of quantitative results
  • Available as individual guard columns or as complete kits with connectors
To ensure that all Z-Guards are the highest possible quality, we individually test each one! The columns are attached to a reference Zebron ZB-5 column and are tested using our specially designed QC mix. We carefully monitor activity, bleed, and stability. This way, we are able to say with confidence that Z-Guards will provide the low activity and high quality your methods require.


Zebron Z-Guard
Recommended Use
Zebron Z-Guard Phase Information
Z-Guard columns are universal GC guard columns, designed for use with virtually any GC capillary column, from virtually any manufacturer.
  • Extend column lifetime by preventing stationary phase damage
  • Improve separation, peak shapes (especially early elutors), sensitivity, and accuracy of quantitative results
  • Alternative to Agilent, Restek, Supelco, and many more
Easy Use Z-Guard Column Kits
Try Z-Guard columns individually or get the convenient, complete kit. Each kit includes:
  • 5 or 10 meters of deactivated fused-silica tubing
  • 5 universal connectors
  • 0.5 mL of high-temperature polyimide resin

Guard Column Usage

Tips: Using Z-Guard Columns

When using a guard at high temperatures, make sure that the press-fit connection is secure.

The most important aspect of a good seal is a good column cut.

  • The column end should be square and smooth (like a straw). Any irregularities will cause leaks.
  • Columns are long - repeat cutting until a good cut is achieved.
  • Lightly scoring the column usually creates a cleaner opening.